Tagged articles

shell

645 articles · Page 4 of 7

May 28, 2022 · Information Security

Xiaomi Engineer’s AOSP Commit to Block Shell Access to Installed APKs Rejected

An AOSP commit proposed by a Xiaomi engineer to prohibit shell extraction of installed APKs—citing potential IP leakage—was rejected after receiving only the author’s support and two opposing votes, with reviewers arguing that such restrictions are ineffective, could be bypassed, and should be handled via DRM or device‑specific policies.

AOSPAPKDRM

0 likes · 3 min read

Xiaomi Engineer’s AOSP Commit to Block Shell Access to Installed APKs Rejected

Programmer DD

May 14, 2022 · Information Security

What Happens When You Run These Dangerous Linux Commands?

The article explains several destructive Linux commands—including rm -rf, fork bombs, direct disk writes, and hidden shellcode—detailing their effects, providing code examples, and warning readers to understand and test them carefully to avoid irreversible system damage.

Linuxdangerous-commandsshell

0 likes · 6 min read

What Happens When You Run These Dangerous Linux Commands?

ITPUB

May 12, 2022 · Databases

Build a Tiny Shell‑Based Database in Two Commands – How It Works

This article demonstrates how a functional, persistent key‑value store can be created with just two shell commands—one to append data and another to retrieve the latest entry—while explaining the underlying grep and sed techniques, performance trade‑offs, and basic indexing concepts.

Indexingdatabasegrep

0 likes · 5 min read

Build a Tiny Shell‑Based Database in Two Commands – How It Works

Liangxu Linux

Apr 26, 2022 · Operations

Master Linux sleep and wait: Precise Timing and Process Synchronization

This guide explains how to use the Linux sleep and wait commands for pausing execution, specifying time units, handling sub‑second intervals, running periodic tasks, and synchronizing background processes, complete with practical Bash examples and detailed explanations.

LinuxScriptingbash

0 likes · 5 min read

Master Linux sleep and wait: Precise Timing and Process Synchronization

Cognitive Technology Team

Apr 26, 2022 · Fundamentals

Using Bash Aliases and Functions for Efficient Command-Line Operations

This guide explains how to create and manage Bash aliases, view existing shortcuts, and replace simple aliases with parameter‑supporting Bash functions, providing practical examples and code snippets for Linux and macOS command‑line efficiency, especially in Kubernetes workflows.

FunctionsLinuxalias

0 likes · 4 min read

Using Bash Aliases and Functions for Efficient Command-Line Operations

Python Programming Learning Circle

Apr 11, 2022 · Operations

Using TheFuck: A Python Tool for Automatically Fixing Mistyped Shell Commands

The article introduces the Python‑based tool “thefuck”, explains its purpose of automatically correcting mistyped shell commands, demonstrates common use cases, details installation steps across macOS, Ubuntu and other systems, shows how to configure it, and outlines the underlying rule‑based correction mechanisms.

LinuxPythonTool

0 likes · 5 min read

Using TheFuck: A Python Tool for Automatically Fixing Mistyped Shell Commands

ITPUB

Mar 29, 2022 · Fundamentals

Master Zsh: Install, Configure, and Supercharge Your Shell with Oh‑My‑Zsh

This guide walks you through the basics of Linux shells, introduces Zsh and its powerful features, shows how to install Zsh, configure it with Oh‑My‑Zsh, customize themes and plugins, and switch the default shell, providing all essential commands and tips.

Configurationoh-my-zshshell

0 likes · 7 min read

Master Zsh: Install, Configure, and Supercharge Your Shell with Oh‑My‑Zsh

Liangxu Linux

Mar 28, 2022 · Fundamentals

Master Zsh and Oh‑My‑Zsh: Install, Configure, and Customize Your Shell

This guide explains why Linux offers multiple shells, introduces Zsh and its powerful features, walks through installing Zsh and setting it as the default shell, and provides step‑by‑step instructions for adding Oh‑My‑Zsh, customizing themes, plugins, and managing updates or removal.

Linuxcommand-lineoh-my-zsh

0 likes · 8 min read

Master Zsh and Oh‑My‑Zsh: Install, Configure, and Customize Your Shell

Efficient Ops

Mar 22, 2022 · Operations

10 Essential Linux Commands Every Developer Should Master

This tutorial introduces ten fundamental Linux commands—pgrep, pstree, bc, split, nl, mkfifo, ldd, col, xmlwf, and lsof—explaining their purposes, typical usage examples, and how they help developers and system administrators efficiently manage processes, files, and system resources on Linux.

Unixcommand-lineshell

0 likes · 11 min read

10 Essential Linux Commands Every Developer Should Master

Liangxu Linux

Mar 21, 2022 · Fundamentals

Master the Classic Shell Interview Questions: 13 Essential Concepts Explained

This article presents the classic "Shell Thirteen Questions" covering the definition of a shell, prompt mechanics, echo behavior, quoting rules, variable export, exec versus source, command grouping, substitution, wildcard handling, logical operators, I/O redirection, conditional statements, and loop constructs, each with clear explanations and examples.

LinuxScriptingbash

0 likes · 12 min read

Master the Classic Shell Interview Questions: 13 Essential Concepts Explained

Open Source Linux

Mar 21, 2022 · Fundamentals

Master Zsh: From Basics to Oh‑My‑Zsh Full Configuration

This guide introduces Zsh, compares it with other Linux shells, explains its powerful features, and provides step‑by‑step instructions for installing Zsh, configuring it as the default shell, and enhancing it with Oh‑My‑Zsh themes and plugins.

Linuxcommand-lineoh-my-zsh

0 likes · 8 min read

Master Zsh: From Basics to Oh‑My‑Zsh Full Configuration

Selected Java Interview Questions

Mar 20, 2022 · Fundamentals

Comprehensive Linux Basics and Command-Line Guide

An extensive tutorial covering Linux fundamentals, including operating system concepts, shell usage, essential commands, file management, permissions, process handling, networking, package management, compression, compilation, and advanced topics like daemon services, providing practical examples and step‑by‑step instructions for beginners and intermediate users.

Linuxshellsystem-administration

0 likes · 48 min read

Comprehensive Linux Basics and Command-Line Guide

Efficient Ops

Feb 21, 2022 · Operations

Mastering Linux Shell: Key Concepts, Commands, and Scripting Tricks

This article explains the fundamentals of Linux shells, covering why they’re called shells, prompt behavior, echo usage, quoting differences, variable handling, export, command grouping, arithmetic expansion, special parameters, redirection, conditional statements, loops, and provides practical Bash code examples for each concept.

ScriptingUnixbash

0 likes · 12 min read

Mastering Linux Shell: Key Concepts, Commands, and Scripting Tricks

Selected Java Interview Questions

Feb 12, 2022 · Databases

Implementing Daily User Metrics (DNU, DAU, Retention) with Shell Scripts and MySQL Partitioned Tables

This guide explains how to collect, store, clean, and aggregate daily user metrics—including new users, active users, and multi‑day retention—using shell scripts, cron jobs, MySQL partitioned tables, and stored procedures, suitable for small‑to‑medium sized products.

DataPipelineSQLUserMetrics

0 likes · 20 min read

Implementing Daily User Metrics (DNU, DAU, Retention) with Shell Scripts and MySQL Partitioned Tables

MaGe Linux Operations

Feb 4, 2022 · Operations

Master Linux Environment Variables: Configuring Paths & Loading Order

This guide explains how to read, set, and permanently configure Linux environment variables—especially the PATH variable—using commands like export and editing files such as ~/.bashrc, ~/.profile, /etc/profile, /etc/bashrc, and /etc/environment, and details the loading order and practical tips for effective management.

environment variablespathshell

0 likes · 12 min read

Master Linux Environment Variables: Configuring Paths & Loading Order

Open Source Linux

Jan 26, 2022 · Operations

Essential Linux Command Cheat Sheet for System Administration

This article compiles a comprehensive set of Linux command‑line shortcuts covering system shutdown, hardware inspection, user management, networking, file handling, compression, performance monitoring, and many other routine administration tasks, providing a handy reference for developers and sysadmins alike.

Networkbashcommand-line

0 likes · 23 min read

Essential Linux Command Cheat Sheet for System Administration

Efficient Ops

Dec 29, 2021 · Operations

Master Shell Script Style: Essential Guidelines for Clean, Efficient Bash Code

This article consolidates practical shell scripting standards—covering shebang usage, commenting, parameter validation, naming conventions, encoding, indentation, function structuring, variable scope, efficient command patterns, parallel execution, and static analysis with ShellCheck—to help developers write readable, maintainable, and performant Bash scripts.

Scriptbashcoding-standards

0 likes · 22 min read

Master Shell Script Style: Essential Guidelines for Clean, Efficient Bash Code

Liangxu Linux

Dec 28, 2021 · Operations

5 Quick Linux Commands to Empty a File Instantly

Learn five practical Linux techniques—using shell redirection, built‑in commands, /dev/null with cat/cp/dd, echo, and truncate—to clear a file's contents without deleting the file, each with clear examples and explanations.

CATFileLinux

0 likes · 4 min read

5 Quick Linux Commands to Empty a File Instantly

Liangxu Linux

Dec 20, 2021 · Operations

Fix Mistyped Shell Commands Instantly with The Fuck

Learn how to install, configure, and use The Fuck tool on macOS, Linux, and FreeBSD to automatically correct common command‑line typos and errors, with practical examples for sudo, git, and Python commands.

Error Correctioncommand-linemacOS

0 likes · 4 min read

Fix Mistyped Shell Commands Instantly with The Fuck

Liangxu Linux

Dec 19, 2021 · Operations

Mastering the Linux ‘find’ Command: Powerful File Search Techniques

Learn how to effectively locate files on POSIX systems using the versatile ‘find’ command, covering installation, name-based searches, wildcards, regular expressions, modification time filters, type restrictions, depth control, and practical examples for Linux, BSD, and macOS environments.

Linuxcommand-linefile-search

0 likes · 7 min read

Mastering the Linux ‘find’ Command: Powerful File Search Techniques

ITPUB

Dec 2, 2021 · Operations

Unlock Linux Performance: Master the ‘time’ Command and Its Hidden Features

This guide explains the Linux time command—from basic usage and the meaning of real, user, and sys outputs to advanced GNU time options, custom formatting, and how these metrics help analyze program performance, CPU usage, I/O waits, and context switches.

CPU profilingGNU timeLinux

0 likes · 11 min read

Unlock Linux Performance: Master the ‘time’ Command and Its Hidden Features

Code Ape Tech Column

Nov 30, 2021 · Operations

Understanding Flame Graphs for Java Performance Analysis

This article introduces flame graphs, explains their visual characteristics and how they help identify performance bottlenecks in Java applications, and provides practical guidance on generating them using Perl scripts and shell commands to process jstack and perf outputs.

flamegraphjstackperformance profiling

0 likes · 9 min read

Understanding Flame Graphs for Java Performance Analysis

Liangxu Linux

Nov 23, 2021 · Operations

Master nohup: Run Linux Commands in Background and Capture Output

This guide explains how the nohup command lets you run programs that ignore hang‑up signals, redirects their output to nohup.out or a specified file, and keeps them running after you close the terminal, with practical syntax and examples.

background executioncommand-linenohup

0 likes · 4 min read

Master nohup: Run Linux Commands in Background and Capture Output

Python Programming Learning Circle

Nov 19, 2021 · Fundamentals

Using Python to Execute Shell Commands: os.system, os.popen, commands, and subprocess

This article explains Python's built‑in methods for invoking shell commands—including os.system, os.popen, the commands module, and the subprocess module—detailing their return values, usage examples, and when to choose each approach for capturing command output.

Command ExecutionOS moduleshell

0 likes · 4 min read

Using Python to Execute Shell Commands: os.system, os.popen, commands, and subprocess

Liangxu Linux

Nov 16, 2021 · Operations

Mastering the su Command: Switching Users and Managing Root Access in Linux

This guide explains the role of the superuser in Linux system management, details how ordinary users can obtain root privileges using the su command, outlines its options and usage examples, and discusses the security trade‑offs of granting root access.

LinuxRoot Accessshell

0 likes · 8 min read

Mastering the su Command: Switching Users and Managing Root Access in Linux

Liangxu Linux

Oct 28, 2021 · Operations

Master Linux ‘at’ Command: Schedule One‑Time Tasks Easily

This guide explains how to install, configure, and use the Linux at command for one‑off task scheduling, covering interactive and non‑interactive usage, time expressions, job management with atq/atrm, and differences from cron, all with practical code examples.

LinuxTask schedulingat command

0 likes · 8 min read

Master Linux ‘at’ Command: Schedule One‑Time Tasks Easily

Sohu Tech Products

Oct 27, 2021 · Operations

Linux Command Cheat Sheet: Basic Operations, System Management, and Monitoring

This article provides a comprehensive collection of essential Linux command-line instructions covering system shutdown and reboot, hardware and process inspection, file manipulation, networking utilities, performance monitoring, and common administrative tasks, all organized for quick reference by developers and system administrators.

Linuxcommand-linenetworking

0 likes · 20 min read

Linux Command Cheat Sheet: Basic Operations, System Management, and Monitoring

Python Programming Learning Circle

Oct 22, 2021 · Fundamentals

Essential Open‑Source Terminal Tools for Boosting Programmer Productivity

This guide introduces a curated list of powerful cross‑platform terminal utilities—including Windows Terminal, iTerm2, oh‑my‑zsh with plugins, file managers, command‑line enhancers, and miscellaneous tools—designed to help developers feel like a 10× programmer by improving workflow efficiency.

Terminalcommand-lineopen-source tools

0 likes · 8 min read

Essential Open‑Source Terminal Tools for Boosting Programmer Productivity

ITPUB

Oct 21, 2021 · Operations

Understanding the Differences Between su and sudo on Linux: When and How to Use Them

This article clarifies the distinct purposes and usage patterns of the Linux commands su and sudo, explains their parameters such as '-' and '-c', demonstrates user creation, password setting, environment differences between login and non‑login shells, and shows how to configure sudo privileges safely.

Linuxshellsu

0 likes · 15 min read

Understanding the Differences Between su and sudo on Linux: When and How to Use Them

Open Source Linux

Oct 17, 2021 · Fundamentals

Mastering the Linux ‘type’ Command: Identify Command Types and Paths

Learn how the Linux ‘type’ command reveals whether a given name is an alias, keyword, function, builtin, or external file, and discover its useful options—such as -a, -f, -p, -t, and -P—to control search behavior and output paths.

LinuxUnixcommand-line

0 likes · 3 min read

Mastering the Linux ‘type’ Command: Identify Command Types and Paths

Open Source Linux

Oct 14, 2021 · Fundamentals

Mastering the unset Command: How to Delete Variables and Functions in Linux

The article explains the purpose, syntax, options, and practical examples of the Linux unset command, showing how to remove shell variables, environment variables, and functions, while noting its limitations with read‑only variables and providing step‑by‑step demonstrations.

FunctionsLinuxVariables

0 likes · 2 min read

Mastering the unset Command: How to Delete Variables and Functions in Linux

Programmer DD

Oct 14, 2021 · Fundamentals

Master Essential Linux Commands: Navigate Files, Manage Permissions, and Automate Tasks

This comprehensive guide covers essential Linux command‑line tools for navigating directories, viewing and manipulating files, searching content, handling permissions, processing text, archiving, system shutdown, and process management, providing practical examples and syntax for each command.

File Managementcommand-lineshell

0 likes · 14 min read

Master Essential Linux Commands: Navigate Files, Manage Permissions, and Automate Tasks

Open Source Linux

Oct 13, 2021 · Fundamentals

Mastering the export Command: How to View and Set Environment Variables in Linux

This guide explains the Linux export command, detailing its purpose for converting shell variables and functions into environment variables, the syntax, available options such as -f, -n, -p, and provides practical examples for listing, setting, and removing environment variables.

ExportLinuxcommand-line

0 likes · 3 min read

Mastering the export Command: How to View and Set Environment Variables in Linux

Liangxu Linux

Oct 7, 2021 · Information Security

How a 13‑Character Fork Bomb Crashes Linux and How to Stop It

The article explains the 13‑character fork bomb created by Jaromil in 2002, shows how it exhausts system resources by recursively forking processes, demonstrates its impact on a cloud VM, and provides practical prevention methods using ulimit and limits.conf.

DOSLinuxfork bomb

0 likes · 6 min read

How a 13‑Character Fork Bomb Crashes Linux and How to Stop It

MaGe Linux Operations

Oct 5, 2021 · Cloud Native

Unlock Advanced kubectl Tricks for Faster Kubernetes Management

This article shares a collection of powerful kubectl commands and tips—including API debugging, status‑based pod filtering and deletion, node‑specific pod listing, distribution counting with awk, and proxy usage—to help experienced Kubernetes users work more efficiently and avoid manual API client coding.

CLIcluster managementdevops

0 likes · 7 min read

Unlock Advanced kubectl Tricks for Faster Kubernetes Management

Open Source Linux

Sep 29, 2021 · Fundamentals

Master the Linux History Command: View, Edit, and Manage Your Shell Commands

This guide explains how to use the Linux history command to display past commands, manipulate the history list with options like clearing, appending, reading, writing, deleting entries, and provides practical examples and key notes for effective shell command management.

Linuxbashcommand-line

0 likes · 4 min read

Master the Linux History Command: View, Edit, and Manage Your Shell Commands

Liangxu Linux

Sep 17, 2021 · Fundamentals

Mastering Shell Special Parameters: $*, $@, $#, $$, and $! Explained with Real Examples

This article explains the behavior of key Bash special parameters—$*, $@, $#, $$, and $!—through three practical scripts that demonstrate argument expansion, counting, arithmetic operations, and process ID retrieval, highlighting the differences and typical use cases.

Scriptingbashprocess ID

0 likes · 5 min read

Mastering Shell Special Parameters: $*, $@, $#, $$, and $! Explained with Real Examples

Laravel Tech Community

Sep 15, 2021 · Operations

Using Find Command and Tools to Detect Duplicate Files on Linux

This article explains three methods for locating duplicate files on Linux—using a complex find‑pipeline, installing the cross‑platform dupeGuru tool, and a step‑by‑step breakdown of each command in the pipeline—complete with code snippets and usage tips.

Linuxcommand-linedupeguru

0 likes · 7 min read

Using Find Command and Tools to Detect Duplicate Files on Linux

Liangxu Linux

Sep 12, 2021 · Operations

Quickly Locate Duplicate Files on Linux with Find and dupeGuru

This guide shows three practical ways to identify duplicate files on Linux—using an advanced find‑pipeline, installing the cross‑platform dupeGuru utility, and a step‑by‑step breakdown of each command in the pipeline, complete with code examples and explanations.

Linuxdupeguruduplicate files

0 likes · 8 min read

Quickly Locate Duplicate Files on Linux with Find and dupeGuru

Open Source Linux

Sep 6, 2021 · Fundamentals

Mastering the Linux ‘help’ Command: Options, Syntax, and Real‑World Examples

This guide explains how to use the Linux help command to display built‑in shell command information, outlines its syntax and available options, and provides concrete examples showing short descriptions, manual‑style output, and syntax summaries for commands like pwd.

Help CommandLinuxUnix

0 likes · 3 min read

Mastering the Linux ‘help’ Command: Options, Syntax, and Real‑World Examples

政采云技术

Aug 24, 2021 · Frontend Development

Automating WeChat Mini‑Program Build and Deployment with a VSCode Extension

This article details how to create a VSCode plugin that automates the entire workflow of building, versioning, and publishing a WeChat mini‑program using uni‑app, shell commands, Git operations, Dubbo service calls, and the WeChat DevTools CLI, providing code examples and step‑by‑step analysis.

DubboGitVSCode

0 likes · 17 min read

Automating WeChat Mini‑Program Build and Deployment with a VSCode Extension

Laravel Tech Community

Aug 14, 2021 · Fundamentals

File Splitting with split and Merging with cat on Linux

This guide explains how to use the Linux split command to divide large files into smaller parts and the cat command to concatenate those parts back together, including syntax, practical examples, and help options for efficient file transfer and management.

CATFile ManagementLinux

0 likes · 7 min read

File Splitting with split and Merging with cat on Linux

dbaplus Community

Aug 2, 2021 · Fundamentals

Master Linux History Command: Practical Tips to Boost Shell Efficiency

This guide explains how the Linux history mechanism works, shows essential commands for viewing, filtering, and replaying past commands, demonstrates timestamping, adjusting record limits, changing the history file, disabling logging, and shares a hidden trick for keeping sensitive commands out of the log.

Linuxauditbash

0 likes · 10 min read

Master Linux History Command: Practical Tips to Boost Shell Efficiency

Liangxu Linux

Jul 21, 2021 · Fundamentals

Essential Linux Commands: Quick Reference for Everyday Tasks

A concise collection of common Linux commands covering file management, user administration, permissions, networking, and editor shortcuts, presented with clear examples and explanations for quick learning and reference.

Vipermissionsshell

0 likes · 7 min read

Essential Linux Commands: Quick Reference for Everyday Tasks

Liangxu Linux

Jul 19, 2021 · Fundamentals

Understanding Shell Exit Codes: How $? Reveals Command Success or Failure

This article explains how a command’s exit status indicates success or failure in Unix shells, describes the meaning of common return codes, introduces the special $? variable, and provides a comprehensive Bash script example demonstrating various exit scenarios and custom status handling.

Scriptingbashexit status

0 likes · 4 min read

Understanding Shell Exit Codes: How $? Reveals Command Success or Failure

Liangxu Linux

Jul 18, 2021 · Fundamentals

Master Linux Aliases: Simplify Commands and Boost Productivity

This guide explains how Linux aliases work, shows how to create temporary and permanent shortcuts for long commands like rsync, demonstrates listing and removing aliases, and provides step‑by‑step instructions for storing aliases in ~/.bashrc or a separate file.

Linuxbashshell

0 likes · 5 min read

Master Linux Aliases: Simplify Commands and Boost Productivity

Code Ape Tech Column

Jul 11, 2021 · Fundamentals

Essential Open‑Source Terminal Tools for Developers

This article introduces a curated collection of open‑source terminal utilities—including Windows Terminal, iTerm2, oh‑my‑zsh, powerline, file managers, command‑enhancement tools, and other handy programs—explaining their key features and providing links so developers can boost productivity across macOS, Linux, and Windows environments.

Terminalcommand-linedeveloper

0 likes · 7 min read

Essential Open‑Source Terminal Tools for Developers

MaGe Linux Operations

Jul 10, 2021 · Operations

10 Essential Linux Commands Every Developer Should Master

Discover ten indispensable Linux commands—from process inspection with pgrep to file splitting with split—complete with explanations, practical examples, and code snippets, empowering developers and system administrators to harness Linux’s powerful capabilities for efficient workflow and system management.

Unixcommand-lineshell

0 likes · 10 min read

Top Architect

Jul 9, 2021 · Operations

Essential Open‑Source Terminal Tools for Developers

This guide presents a curated list of powerful open‑source terminal utilities—including Windows Terminal, iTerm2, oh‑my‑zsh, file managers, command enhancers, and other handy tools—designed to boost developer productivity and give a feeling of being a 10× programmer.

Developer ToolsTerminalcommand-line

0 likes · 8 min read

MaGe Linux Operations

Jun 29, 2021 · Fundamentals

How to Install and Set Up Nushell – A Modern Rust‑Based Shell

This guide walks you through installing the Rust‑written Nushell on Linux and macOS, covering prerequisite tools, binary download, extraction, PATH configuration, plugin setup, user creation, default shell change, and a quick test of basic commands.

InstallationNushellmacOS

0 likes · 6 min read

How to Install and Set Up Nushell – A Modern Rust‑Based Shell

Liangxu Linux

Jun 27, 2021 · Fundamentals

Master Linux Aliases: Turn Long Commands into Simple Shortcuts

Learn how to create temporary and permanent Linux aliases to replace lengthy commands, streamline file synchronization with rsync, manage aliases via the alias and unalias commands, and store them in dedicated files for persistent shell customization.

Linuxbashshell

0 likes · 5 min read

Master Linux Aliases: Turn Long Commands into Simple Shortcuts

Liangxu Linux

Jun 23, 2021 · Operations

27 Essential Linux Command‑Line Tricks to Boost Your Productivity

This guide presents 27 practical Linux command‑line techniques—from safe file deletion and alias management to cursor shortcuts, process monitoring, log handling, and advanced scripting—helping power users work faster and avoid common pitfalls.

bashcommand-lineshell

0 likes · 14 min read

27 Essential Linux Command‑Line Tricks to Boost Your Productivity

Efficient Ops

Jun 22, 2021 · Operations

Essential Linux Commands Every Sysadmin Should Master

This article provides a comprehensive reference of Linux commands, explaining their purpose and usage across categories such as file management, system monitoring, networking, user administration, and process control, helping readers efficiently manage and troubleshoot Linux systems.

LinuxUnixcommand-line

0 likes · 17 min read

Essential Linux Commands Every Sysadmin Should Master

MaGe Linux Operations

Jun 21, 2021 · Operations

Master Ansible Automation: Key Features, Setup, and Practical Playbook Commands

This tutorial introduces Ansible, outlines its main features, guides you through preparing a lab environment, configuring hosts and the master node, and demonstrates common modules and command options with clear code examples for effective automation.

AnsibleModulesPlaybooks

0 likes · 10 min read

Master Ansible Automation: Key Features, Setup, and Practical Playbook Commands

21CTO

Jun 19, 2021 · Fundamentals

Unlocking Linux: Inside the Kernel, Shell, Filesystem & Disk Management

This article explains the four core parts of a Linux system—kernel, shell, filesystem and applications—covering memory and process management, VFS architecture, file types, directory hierarchy, partitioning, mounting, links and essential command‑line tools.

FilesystemLinuxMemory Management

0 likes · 33 min read

Unlocking Linux: Inside the Kernel, Shell, Filesystem & Disk Management

Liangxu Linux

Jun 14, 2021 · Operations

7 Essential Everyday Shell Scripts for Linux System Administration

This article presents seven practical Bash scripts that help Linux administrators quickly gather system status, back up MySQL databases, monitor services, scan network hosts, manage user passwords, and verify MySQL replication, each accompanied by clear code examples and usage instructions.

Monitoringbackupscripts

0 likes · 10 min read

7 Essential Everyday Shell Scripts for Linux System Administration

Liangxu Linux

Jun 14, 2021 · Operations

How to Split and Merge Large Files on Linux Using split and cat

This guide explains why large files often need to be divided for network transfer on Linux, and provides step‑by‑step commands and options for using the split utility to cut files into smaller pieces and the cat command to recombine them efficiently.

CATFile SplittingLinux

0 likes · 6 min read

How to Split and Merge Large Files on Linux Using split and cat

Java Architect Essentials

Jun 4, 2021 · Fundamentals

Comprehensive Linux Fundamentals and Command Reference Guide

This extensive guide covers Linux fundamentals, including system overview, file system hierarchy, kernel components, user and kernel space, command-line basics, essential commands for file management, networking, security, scripting, and practical examples, providing a thorough introduction for beginners and intermediate users alike.

CommandsFundamentalsshell

0 likes · 59 min read

Comprehensive Linux Fundamentals and Command Reference Guide

Python Programming Learning Circle

Jun 4, 2021 · Operations

Essential CLI Tools for Productivity and System Management

This article presents a curated list of high‑frequency and low‑frequency command‑line utilities—including fish shell, Starship, z, fzf, fd, ripgrep, htop, glances, Homebrew, asciinema, diff‑tools, tree, bat, httpie, tldr, exa, litecli, mas, and ncdu—explaining their features, installation, and practical usage to boost developer efficiency across Linux and macOS environments.

Terminalshelltools

0 likes · 18 min read

Essential CLI Tools for Productivity and System Management

ITFLY8 Architecture Home

Jun 3, 2021 · Operations

21 Essential Linux Commands Every Developer Should Master

This comprehensive guide lists the 21 most frequently used Linux commands—from navigating directories and managing files to searching, text processing, compression, system shutdown, and process control—providing a handy cheat‑sheet for developers and system administrators alike.

LinuxUnixcommand-line

0 likes · 13 min read

21 Essential Linux Commands Every Developer Should Master

Liangxu Linux

May 30, 2021 · Fundamentals

Mastering Shell Special Parameters: $*, $@, $#, $$, $! with Real Examples

This article explains the purpose and behavior of key shell special parameters—$*, $@, $#, $$, and $!—through three practical scripts that demonstrate expanding positional arguments, counting arguments, and accessing process IDs, complete with code snippets and expected output.

Scriptingbashcommand-line

0 likes · 4 min read

Mastering Shell Special Parameters: $*, $@, $#, $$, $! with Real Examples

Liangxu Linux

May 25, 2021 · Operations

How to Accurately Measure Directory Sizes on Linux with du

This guide explains why the ls command shows a fixed 4 KB size for directories, introduces the du (disk usage) utility, and provides step‑by‑step examples for obtaining total, per‑directory, per‑file, and cumulative size information using various du options.

Linuxcommand-linedirectory size

0 likes · 8 min read

How to Accurately Measure Directory Sizes on Linux with du

Efficient Ops

May 12, 2021 · Operations

7 Ready‑to‑Use Python & Shell Scripts to Supercharge Your Ops

This article shares a curated collection of ready‑to‑run Python and Shell scripts—including Enterprise WeChat alerts, FTP and SSH clients, SaltStack and vCenter utilities, SSL certificate checks, weather notifications, SVN backups, Zabbix password monitoring, local YUM mirroring, and high‑load detection—complete with full source code and usage notes to help engineers automate routine tasks and boost operational efficiency.

OpsPythonscripts

0 likes · 30 min read

7 Ready‑to‑Use Python & Shell Scripts to Supercharge Your Ops

Full-Stack Internet Architecture

May 12, 2021 · Operations

Understanding the Linux `time` Command: Basics, Advanced Features, and Performance Analysis

This article introduces the Linux `time` command, explains its basic usage and output fields (real, user, sys), distinguishes between shell built‑in and GNU versions, demonstrates advanced options such as custom formatting, file output, and shows how to interpret the metrics for performance analysis.

GNULinuxperformance-analysis

0 likes · 11 min read

Understanding the Linux `time` Command: Basics, Advanced Features, and Performance Analysis

Efficient Ops

May 10, 2021 · Operations

Essential Linux Commands for System Monitoring and Regex Toolkit

This article compiles a comprehensive set of Linux shell commands for server health checks—from file cleanup and process inspection to network, disk, and memory monitoring—followed by a handy collection of regular expressions for common validation tasks.

CommandsLinuxSystem Monitoring

0 likes · 13 min read

Essential Linux Commands for System Monitoring and Regex Toolkit

Liangxu Linux

May 10, 2021 · Operations

Master Linux ‘time’ Command: Hidden Tricks, Metrics, and Performance Tips

Learn how to effectively use the Linux time command—including its basic output, the meaning of real, user, and sys values, differences between shell built‑ins and GNU time, and advanced options like -p, -v, -o, -f—to accurately measure program performance and diagnose bottlenecks.

LinuxSystem Monitoringperformance measurement

0 likes · 10 min read

Master Linux ‘time’ Command: Hidden Tricks, Metrics, and Performance Tips

Liangxu Linux

May 9, 2021 · Fundamentals

Four Simple Ways to Read a File Line‑by‑Line in Shell Scripts

This guide demonstrates four practical techniques—input redirection, cat with a pipe, passing the filename as a parameter, and using awk—to read a text file line by line in a Bash script, complete with code snippets and expected output.

File Readingawkbash

0 likes · 4 min read

Four Simple Ways to Read a File Line‑by‑Line in Shell Scripts

Java Interview Crash Guide

May 7, 2021 · Operations

Unlock Performance Bottlenecks with Flame Graphs: A Practical Guide

This article explains how flame graphs visualize call‑stack frequency and duration, shows how to generate them from Java jstack dumps using Perl tools, and demonstrates how to interpret their widths and flat tops to pinpoint performance hot spots in production systems.

Javaflame graphjstack

0 likes · 11 min read

Unlock Performance Bottlenecks with Flame Graphs: A Practical Guide

21CTO

May 6, 2021 · Fundamentals

Master the Linux Terminal: Essential Commands Every Developer Needs

This guide introduces the most important Linux terminal commands—pwd, ls, cd, mkdir, man, touch, nano, and rm—explaining their usage, syntax, and practical tips so developers can navigate, manage files, and work confidently in a shell environment.

BasicsLinuxTerminal

0 likes · 6 min read

Master the Linux Terminal: Essential Commands Every Developer Needs

FunTester

Apr 28, 2021 · Fundamentals

Convert JSON to CSV with jq: A Step‑by‑Step Tutorial

This tutorial demonstrates how to use the jq command‑line tool to extract an array of objects from a JSON file, reshape the data into a two‑column format, and output it as properly formatted CSV, including handling of quoting and raw output options.

CSVcommand-linedata transformation

0 likes · 4 min read

Convert JSON to CSV with jq: A Step‑by‑Step Tutorial

Efficient Ops

Apr 25, 2021 · Operations

Master Linux Command History: 10 Powerful Tips to Boost Efficiency

This article explains how Linux shells store command history in .bash_history, shows basic and advanced usage of the history command—including listing, searching, repeating, timestamping, and configuring history size—and provides practical tricks for auditing, backup, and even disabling history for security purposes.

Linuxbashcommand-line

0 likes · 11 min read

Master Linux Command History: 10 Powerful Tips to Boost Efficiency

Liangxu Linux

Apr 21, 2021 · Fundamentals

15 Essential Linux Command‑Line Tricks to Boost Your Productivity

This article presents a collection of fifteen practical Linux command‑line techniques—including fast file clearing, large file generation, secure disk wiping, process timing, log monitoring, timestamp conversion, and history shortcuts—to help users automate tasks and work more efficiently.

Unix toolscommand-lineshell

0 likes · 9 min read

15 Essential Linux Command‑Line Tricks to Boost Your Productivity

FunTester

Apr 21, 2021 · Fundamentals

Master Linux File Search: Powerful find Command Tricks and Examples

This guide walks through the versatile Linux find command, showing how to locate files and directories by name, type, size, timestamps, permissions, and more, while demonstrating practical examples such as pattern matching, case‑insensitive searches, depth limiting, and executing actions on results.

File SearchLinuxUnix

0 likes · 10 min read

Master Linux File Search: Powerful find Command Tricks and Examples

Efficient Ops

Apr 19, 2021 · Operations

15 Essential Linux Command-Line Tricks to Boost Your Productivity

This article presents fifteen practical Linux command-line techniques—from quickly emptying files and generating large test files to securely erasing disks, monitoring logs, converting timestamps, measuring execution time, handling garbled filenames, retrieving public IPs, batch downloading, and mastering history shortcuts—designed to dramatically improve everyday productivity.

Linuxcommand-lineshell

0 likes · 9 min read

Liangxu Linux

Apr 18, 2021 · Fundamentals

Mastering Bash Brackets: Parentheses, Brackets, and Brace Expansions Explained

This guide provides a comprehensive overview of Bash’s various bracket types—including parentheses, double parentheses, square brackets, double square brackets, and curly braces—detailing their syntax, typical use‑cases, parameter‑expansion forms, pattern‑matching capabilities, and practical code examples for effective shell scripting.

Scriptingbashbrackets

0 likes · 13 min read

Mastering Bash Brackets: Parentheses, Brackets, and Brace Expansions Explained

FunTester

Apr 16, 2021 · Fundamentals

Linux Filesystem Overview, Common Issues, and Vim/Shell Command Guide

This article introduces the Linux filesystem hierarchy, explains typical directories, provides solutions for MobaTextEditor garbled text, and offers a concise guide to Vim modes, settings, search/replace commands, and useful shell scripts for system administrators.

CommandsFilesystemLinux

0 likes · 8 min read

Linux Filesystem Overview, Common Issues, and Vim/Shell Command Guide

Liangxu Linux

Apr 14, 2021 · Operations

7 Practical Bash Scripts to Boost Linux Sysadmin Efficiency

This article presents seven hands‑on Bash script examples that cover concurrent hostname collection, process state counting, bulk file renaming, automated jstack logging, GC log analysis, high‑traffic IP detection with conditional reporting, and moving large files while sorting them by size, each with complete code snippets.

Scriptingbashshell

0 likes · 8 min read

7 Practical Bash Scripts to Boost Linux Sysadmin Efficiency

Aikesheng Open Source Community

Apr 14, 2021 · Databases

Using MySQL Shell to Operate Relational Tables: Examples with MySQL, MySQL X, and SHELL Components

This tutorial demonstrates how to use MySQL Shell's three components—MySQL, MySQL X, and SHELL—to connect to a sample WORLD database, perform CRUD operations, execute transactions, and run advanced queries with code examples for each component.

SQLX Protocoldata manipulation

0 likes · 10 min read

Using MySQL Shell to Operate Relational Tables: Examples with MySQL, MySQL X, and SHELL Components

Open Source Linux

Apr 13, 2021 · Fundamentals

Master Linux Environment Variables: Quick Configurations & Loading Order

This guide explains how to configure Linux environment variables using various methods such as export, editing ~/.bashrc, ~/.bash_profile, /etc/bashrc, /etc/profile, and /etc/environment, and details the loading sequence and practical tips for effective management.

ConfigurationLinuxbash

0 likes · 13 min read

Master Linux Environment Variables: Quick Configurations & Loading Order

Laravel Tech Community

Apr 11, 2021 · Operations

Commonly Used Linux Commands: A Quick Reference Guide

This article provides a comprehensive cheat‑sheet of the 21 most frequently asked Linux commands, covering file navigation, content viewing, searching, permissions, text processing, archiving, system control, and process management for interview preparation and daily use.

File Managementcommand-lineprocess management

0 likes · 10 min read

Commonly Used Linux Commands: A Quick Reference Guide

Selected Java Interview Questions

Apr 3, 2021 · Operations

Common Linux Commands for File Management, Permissions, and System Operations

This article provides a comprehensive overview of essential Linux commands for navigating directories, viewing and manipulating files, managing permissions, compressing archives, and controlling system processes, offering practical examples and syntax for each operation.

File ManagementLinuxcommand-line

0 likes · 14 min read

Common Linux Commands for File Management, Permissions, and System Operations

Sohu Tech Products

Mar 31, 2021 · Operations

Shell Basics: Introduction, Commands, Variables, and Scripting

This article provides a comprehensive introduction to the Bash shell, covering its purpose, user prompts, shebang syntax, execution methods, basic commands like echo and printf, variable handling, environment variables, arithmetic operations, and conditional statements for writing effective shell scripts.

LinuxScriptingVariables

0 likes · 14 min read

Shell Basics: Introduction, Commands, Variables, and Scripting

FunTester

Mar 23, 2021 · Operations

Master JSON Formatting on the Command Line with jq: Tips and Real-World Examples

This guide shows how to use the jq command‑line tool to elegantly format, query, and extract data from JSON responses across Linux, Windows, and macOS, providing practical examples, syntax basics, and integration with curl for API testing.

LinuxWindowscommand-line

0 likes · 6 min read

Master JSON Formatting on the Command Line with jq: Tips and Real-World Examples

Efficient Ops

Mar 21, 2021 · Fundamentals

How to Harden Linux Bash History: Timestamps, User/IP Logging & Syslog Integration

This guide shows how to enrich Linux Bash history with execution timestamps, associate each command with the user and IP address, and forward the logs to syslog—providing reliable audit trails and protecting against attackers tampering with history records.

History LoggingLinuxSecurity Auditing

0 likes · 6 min read

How to Harden Linux Bash History: Timestamps, User/IP Logging & Syslog Integration

Open Source Linux

Mar 10, 2021 · Operations

Master Server Log Analysis: 20 Essential Linux Commands to Uncover Traffic and Issues

This guide compiles twenty practical Linux command-line techniques for analyzing web server logs, revealing visitor IP counts, page popularity, request timing, bandwidth usage, error rates, and connection states, enabling administrators to monitor traffic, detect anomalies, and optimize performance.

Linuxawklog analysis

0 likes · 13 min read

Master Server Log Analysis: 20 Essential Linux Commands to Uncover Traffic and Issues

php Courses

Mar 5, 2021 · Operations

Managing Linux Command History: View, Search, Modify, and Clear

This article explains how to use the Linux history command to view past commands, search with Ctrl +r, repeat previous entries, adjust the number of stored records, and clear the history, providing practical examples and configuration tips for effective shell management.

LinuxTerminalbash

0 likes · 5 min read

Managing Linux Command History: View, Search, Modify, and Clear

Open Source Linux

Mar 3, 2021 · Fundamentals

Master Essential Linux Commands: A Complete Cheat Sheet

This article presents a comprehensive list of essential Linux commands, organized into categories such as online queries, file operations, content viewing, compression, system information, user management, networking, disk handling, permissions, and performance monitoring, each illustrated with reference images.

Cheat SheetLinuxcommand-line

0 likes · 3 min read

Master Essential Linux Commands: A Complete Cheat Sheet

ITPUB

Mar 3, 2021 · Fundamentals

How Linux Starts Your Program: Inside execve, the Loader, and the Dynamic Linker

From the moment a user types a command in the shell to the final exit of the program, this article walks through Linux’s execution pipeline—including shell command parsing, fork, execve, kernel loading via load_elf_binary, the dynamic linker’s role, and the glibc startup sequence—illustrated with detailed diagrams and code snippets.

LinuxSystem Calldynamic linker

0 likes · 11 min read

How Linux Starts Your Program: Inside execve, the Loader, and the Dynamic Linker

Liangxu Linux

Feb 25, 2021 · Fundamentals

Quick Shell Tricks to Remove Blank Lines from Logs with grep, sed, awk, tr, and vi

This article shares concise, easy-to-understand shell command techniques—using grep, sed, awk, tr, and vi—to efficiently delete empty lines from log files, highlighting each tool's syntax, options, and practical usage for embedded software developers.

Log ProcessingViawk

0 likes · 5 min read

Quick Shell Tricks to Remove Blank Lines from Logs with grep, sed, awk, tr, and vi

21CTO

Feb 24, 2021 · Fundamentals

Essential Linux Commands Every Beginner Should Master

This article presents a concise, beginner‑friendly list of the most useful Linux command‑line utilities, explaining each command’s purpose and syntax to help newcomers transition from Windows to Linux and become comfortable with terminal operations.

BasicsLinuxTerminal

0 likes · 4 min read

Essential Linux Commands Every Beginner Should Master

Efficient Ops

Feb 21, 2021 · Fundamentals

Mastering Linux: Core Components, Kernel, Filesystems, and Shell Explained

This comprehensive guide explores Linux's four main components—kernel, shell, filesystem, and applications—detailing kernel architecture, memory and process management, VFS, device drivers, networking, file types, directory structures, mounting, and practical commands for managing partitions and links.

FilesystemLinuxkernel

0 likes · 35 min read

Mastering Linux: Core Components, Kernel, Filesystems, and Shell Explained

php Courses

Feb 18, 2021 · Operations

Linux Network Configuration Commands: ifconfig, ifup/ifdown, and route

The article explains how to use the Linux commands ifconfig, ifup/ifdown, and route for querying and modifying network interfaces, IP addresses, subnet masks, MTU values, and routing tables, providing example usages and practical tips for immediate effect.

LinuxNetworkifconfig

0 likes · 5 min read

Linux Network Configuration Commands: ifconfig, ifup/ifdown, and route

MaGe Linux Operations

Feb 7, 2021 · Operations

Master Linux Environment Variables: How to Set, Update, and Use Them

This guide explains Linux environment variables, covering system‑wide and user‑specific permanent settings, temporary shell variables, common variables like PATH and HOME, and essential commands for viewing, modifying, and managing them effectively.

Linuxenvironment variablesshell

0 likes · 6 min read

Master Linux Environment Variables: How to Set, Update, and Use Them

Liangxu Linux

Jan 31, 2021 · Operations

Essential Linux Commands Every Java Developer Should Master

A concise reference of the most useful Linux shell commands—from file searching and process management to networking and file compression—explains syntax, common options, and practical examples to help developers interact efficiently with Linux servers.

Java developmentLinuxServer Administration

0 likes · 7 min read

Essential Linux Commands Every Java Developer Should Master

Practical DevOps Architecture

Jan 21, 2021 · Fundamentals

Setting Up a Git Repository on Kubernetes Nodes and Performing Basic Git Operations

This guide walks through preparing the Linux environment on Kubernetes master and node machines, creating a bare Git repository, configuring SSH access, cloning the repository, and demonstrating core Git commands such as add, commit, status, diff, and push to a remote server.

GitLinuxVersion Control

0 likes · 6 min read

Setting Up a Git Repository on Kubernetes Nodes and Performing Basic Git Operations

Liangxu Linux

Jan 17, 2021 · Fundamentals

Understanding Linux: Kernel, Shell, Filesystem, and Core Components Explained

This article provides a comprehensive overview of Linux's core components—including the kernel, memory and process management, virtual file system, device drivers, network stack, shell variants, file types, directory hierarchy, partitioning, mounting, and essential command‑line tools—while illustrating each concept with diagrams and code examples.

LinuxMountkernel

0 likes · 34 min read

Understanding Linux: Kernel, Shell, Filesystem, and Core Components Explained

Liangxu Linux

Jan 16, 2021 · Information Security

Essential Linux Security Hardening Checklist for System Administrators

This guide provides system administrators with a step‑by‑step checklist to audit and harden Linux operating systems, covering account management, password policies, service restrictions, filesystem permissions, logging configuration, and practical command examples for comprehensive security compliance.

Linuxcompliancehardening

0 likes · 9 min read

Essential Linux Security Hardening Checklist for System Administrators

Liangxu Linux

Jan 13, 2021 · Operations

Essential Linux Command Cheat Sheet: 200+ Commands Every Sysadmin Should Know

A comprehensive reference of over two hundred Linux command‑line utilities, grouped by function such as file management, system monitoring, networking, user administration, and process control, each with concise English descriptions to help beginners and seasoned administrators quickly find the right tool for any task.

LinuxUnixcommand-line

0 likes · 16 min read

Essential Linux Command Cheat Sheet: 200+ Commands Every Sysadmin Should Know

Liangxu Linux

Jan 10, 2021 · Fundamentals

How to Delete Files with Problematic Names in Linux: 6 Proven Methods

This guide explains why standard rm fails on files with special characters or leading dashes and provides six reliable techniques—including using a path prefix, the "--" separator, quoting, escaping, inode deletion, and wildcards—to safely remove such files on Linux systems.

File ManagementLinuxSpecial Characters

0 likes · 6 min read

How to Delete Files with Problematic Names in Linux: 6 Proven Methods