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343 articles · Page 3 of 4
Selected Java Interview Questions
Selected Java Interview Questions
Dec 19, 2020 · Operations

Linux System Commands Cheat Sheet

This article provides a comprehensive reference of essential Linux system commands covering system information, date and time management, shutdown/reboot, file and directory operations, searching, mounting, disk usage, user and group management, permissions, special attributes, compression, package handling, network utilities, and backup techniques, all presented with concise examples for quick learning.

LinuxUnixcommands
0 likes · 23 min read
Linux System Commands Cheat Sheet
Liangxu Linux
Liangxu Linux
Dec 9, 2020 · Fundamentals

Master Linux Pipes and Redirection: A Hands‑On Guide with Code Examples

This article explains the fundamentals of Linux pipes and file redirection, covering their definitions, how they work as inter‑process communication mechanisms, how to create and use them in C with pipe(), dup2() and fork(), and how to redirect standard streams using freopen(), all illustrated with clear code snippets and diagrams.

C programmingIPCLinux
0 likes · 8 min read
Master Linux Pipes and Redirection: A Hands‑On Guide with Code Examples
Liangxu Linux
Liangxu Linux
Nov 29, 2020 · Fundamentals

35 Essential Linux Commands Every Beginner Should Master

This guide provides a concise, alphabetically ordered reference of 35 core Linux (and macOS) terminal commands, complete with explanations, practical examples, and usage tips to help newcomers quickly become comfortable navigating and managing a Unix-like system.

Command LineLinuxUnix
0 likes · 20 min read
35 Essential Linux Commands Every Beginner Should Master
Programmer DD
Programmer DD
Nov 2, 2020 · Operations

10 Lesser-Known Linux Commands Every Sysadmin Should Master

This article introduces ten useful but often overlooked Linux commands—pgrep, pstree, bc, split, nl, mkfifo, ldd, col, xmlwf, and lsof—explaining their purpose, typical use cases, and providing concrete examples to help system administrators work more efficiently.

LinuxUnixbash
0 likes · 9 min read
10 Lesser-Known Linux Commands Every Sysadmin Should Master
Open Source Linux
Open Source Linux
Nov 2, 2020 · Operations

Master Linux System Commands: Essential Tools for Sysadmins

This comprehensive guide presents essential Linux system commands covering hardware inspection, date handling, shutdown/reboot, file and directory management, searching, mounting, disk usage, user/group administration, permissions, packaging, backup, and network utilities, providing a practical reference for system administrators.

LinuxUnixsystem administration
0 likes · 34 min read
Master Linux System Commands: Essential Tools for Sysadmins
ITPUB
ITPUB
Oct 29, 2020 · Fundamentals

Mastering Linux chmod: A Complete Guide to File Permission Management

This tutorial explains Linux file permissions, the chmod command syntax, numeric and symbolic modes, recursive options, and practical examples, enabling readers to confidently view, modify, and troubleshoot permissions for files and directories.

Command LineFile PermissionsUnix
0 likes · 10 min read
Mastering Linux chmod: A Complete Guide to File Permission Management
Liangxu Linux
Liangxu Linux
Oct 25, 2020 · Operations

Master Linux File Permissions: A Hands‑On Guide to Using chmod

This tutorial explains the Linux chmod command, covering permission basics, how to view permissions with ls‑l, numeric and symbolic modes, recursive changes, reference files, and special cases like applying execute rights only to directories, all with clear examples and command syntax.

File PermissionsLinuxUnix
0 likes · 11 min read
Master Linux File Permissions: A Hands‑On Guide to Using chmod
Selected Java Interview Questions
Selected Java Interview Questions
Oct 6, 2020 · Operations

Comprehensive List of Common Linux Commands

This article provides a detailed, English‑translated reference of essential Linux command‑line tools covering file management, content viewing, compression, system information, networking, user administration, permissions, process control, and system monitoring, useful for both beginners and experienced administrators.

Command LineLinuxUnix
0 likes · 15 min read
Comprehensive List of Common Linux Commands
Laravel Tech Community
Laravel Tech Community
Sep 21, 2020 · Backend Development

PHP chgrp Function: Change File Group Ownership

The article explains PHP’s chgrp function, which changes a file’s group ownership, outlines its syntax, required parameters, permission restrictions, return values, and provides a complete PHP example demonstrating how to modify a file’s group and display the result.

File PermissionsPHPSystem Call
0 likes · 2 min read
PHP chgrp Function: Change File Group Ownership
ITPUB
ITPUB
Sep 17, 2020 · Operations

Understanding the Key Differences Between sudo and su in Linux

This article explains how sudo and su differ in password requirements, default behavior, scope of privilege elevation, environment handling, and usage syntax, providing clear examples and guidance for choosing the appropriate command in Linux system administration.

Command LineLinuxUnix
0 likes · 5 min read
Understanding the Key Differences Between sudo and su in Linux
Liangxu Linux
Liangxu Linux
Sep 16, 2020 · Operations

sudo vs su: When to Use Each Linux Privilege Command

This guide explains the key differences between sudo and su on Linux, covering password requirements, default behaviors, environment handling, command syntax variations, and practical usage tips for switching users or executing privileged commands safely.

LinuxUnixsu
0 likes · 5 min read
sudo vs su: When to Use Each Linux Privilege Command
ITPUB
ITPUB
Aug 19, 2020 · Operations

Mastering Linux ps: Essential Commands for Process Monitoring and Filtering

This guide explains the Linux ps command, its basic options, output formats, and practical examples for listing all processes, filtering by user, CPU or memory usage, sorting, displaying threads, tree view, security information, root‑owned processes, and combining ps with watch for near‑real‑time monitoring.

Command LineLinuxUnix
0 likes · 10 min read
Mastering Linux ps: Essential Commands for Process Monitoring and Filtering
Open Source Linux
Open Source Linux
Aug 11, 2020 · Fundamentals

From Unix to Android: Tracing the Evolution of Modern Operating Systems

Explore the lineage from the 1969 birth of UNIX through the creation of Linux, the emergence of Apple's iOS, and the development of Android, highlighting key milestones, contributors, and how these systems interconnect as the foundational kernels of today’s major platforms.

AndroidLinuxOperating Systems
0 likes · 4 min read
From Unix to Android: Tracing the Evolution of Modern Operating Systems
Liangxu Linux
Liangxu Linux
Jul 26, 2020 · Fundamentals

Master Linux Redirection: Streamline Input, Output, and Error Handling

This guide explains Linux redirection fundamentals, covering stdin, stdout, and stderr streams, how to view their device files, and practical examples of redirecting output, input, error messages, and using /dev/null, Here‑doc, and Here‑string to simplify command‑line workflows.

CLICommand LineLinux
0 likes · 7 min read
Master Linux Redirection: Streamline Input, Output, and Error Handling
Liangxu Linux
Liangxu Linux
Jul 8, 2020 · Fundamentals

Master macOS Terminal: Essential Commands for Beginners and Power Users

This guide introduces macOS Terminal, explains what a terminal is, shows how to open it, covers fundamental commands such as navigation, file handling, system settings, and advanced utilities like diskutil and Homebrew, while warning about risky operations and offering practical examples.

Command LineUnixbasics
0 likes · 18 min read
Master macOS Terminal: Essential Commands for Beginners and Power Users
Liangxu Linux
Liangxu Linux
Jul 5, 2020 · Fundamentals

Mastering /dev/null: How to Silence Output and Redirect Errors in Linux

This article explains the purpose of the virtual device file /dev/null, how standard output and error streams work in Unix-like systems, and provides practical shell redirection techniques with concrete command examples to filter, discard, or log output as needed.

Command LineLinuxRedirection
0 likes · 8 min read
Mastering /dev/null: How to Silence Output and Redirect Errors in Linux
Open Source Linux
Open Source Linux
Jul 1, 2020 · Operations

Master Linux Process Management: Essential ps Command Techniques

This guide walks you through the Linux ps command, covering basic usage, common options for listing all processes, filtering by user, CPU or memory usage, process name, PID, threads, tree view, security details, root‑specific formatting, and real‑time monitoring with watch.

LinuxUnixprocess monitoring
0 likes · 6 min read
Master Linux Process Management: Essential ps Command Techniques
Efficient Ops
Efficient Ops
Jun 29, 2020 · Fundamentals

Mastering sed: Essential Commands for Fast Text Processing

This guide introduces the core concepts of the Unix sed command, covering its basic syntax, common options, address ranges, editing commands, substitution patterns, useful flags, and practical one‑liners for text manipulation and system administration tasks.

Shell scriptingUnixsed
0 likes · 10 min read
Mastering sed: Essential Commands for Fast Text Processing
Liangxu Linux
Liangxu Linux
Jun 25, 2020 · Operations

Top 10 Linux Shell Interview Questions and How to Solve Them

This article presents ten common Linux shell interview questions, providing clear explanations and step‑by‑step command examples—including script termination, file header removal, line length checking, non‑printable character display, directory permissions, process states, and differences between utilities—so readers can master essential command‑line techniques.

Command LineInterviewLinux
0 likes · 8 min read
Top 10 Linux Shell Interview Questions and How to Solve Them
Liangxu Linux
Liangxu Linux
May 1, 2020 · Operations

5 Quick Linux Commands to Delete All Files in Any Directory

This guide presents five practical Linux shell commands—using rm, find, xargs, and loops—to safely remove all regular files from the current directory or any specified path, covering classic, recursive, and bulk‑deletion scenarios.

Command LineDelete FilesUnix
0 likes · 3 min read
5 Quick Linux Commands to Delete All Files in Any Directory
ITPUB
ITPUB
Apr 13, 2020 · Fundamentals

Mastering the Linux cut Command: Practical Examples and Advanced Options

This tutorial explains the Linux cut command, covering its syntax, key options such as -f, -d, -b, -c, --complement and --output-delimiter, and provides numerous real‑world examples for extracting fields, characters, and bytes from text files and combining cut with other Unix utilities.

Command LineLinuxUnix
0 likes · 9 min read
Mastering the Linux cut Command: Practical Examples and Advanced Options
ITPUB
ITPUB
Apr 3, 2020 · Fundamentals

Understanding Linux Zombie Processes: Why They Appear and How to Handle Them

This article explains what Linux zombie processes are, why the kernel retains them after a program exits, the crucial information they store, and demonstrates how to create, observe, and properly clean up zombies using C code and standard system calls.

C++LinuxProcess Management
0 likes · 5 min read
Understanding Linux Zombie Processes: Why They Appear and How to Handle Them
Liangxu Linux
Liangxu Linux
Mar 5, 2020 · Operations

Essential Linux Commands Every Engineer Should Master

This guide compiles the most essential Linux commands for directory handling, file manipulation, text processing, compression, system monitoring, networking, and routine administration, providing concise examples and practical tips to help beginners and seasoned users alike navigate and manage Unix-like environments efficiently.

Command LineOperationsUnix
0 likes · 13 min read
Essential Linux Commands Every Engineer Should Master
Huawei Cloud Developer Alliance
Huawei Cloud Developer Alliance
Mar 4, 2020 · Fundamentals

What Drove the Rise of Open Source? A Macro‑Historical Analysis

This article examines the macro‑level origins and motivations behind open source software, tracing the evolution from early industrial revolutions through scientific and technological breakthroughs, the birth of UNIX, the BSD split, and the broader tech‑economy paradigm that positioned software as a pivotal production factor.

BSDOpen SourceUnix
0 likes · 17 min read
What Drove the Rise of Open Source? A Macro‑Historical Analysis
Xiaokun's Architecture Exploration Notes
Xiaokun's Architecture Exploration Notes
Mar 4, 2020 · Fundamentals

Understanding the 5 Core I/O Models: From Blocking to Asynchronous

This article explains the evolution of Unix network I/O models, detailing data transmission paths, blocking and non‑blocking operations, and comparing five models—blocking, non‑blocking, I/O multiplexing, signal‑driven, and asynchronous—while clarifying key terminology such as user space, kernel, and file descriptors.

I/O ModelsUnixasynchronous I/O
0 likes · 15 min read
Understanding the 5 Core I/O Models: From Blocking to Asynchronous
Liangxu Linux
Liangxu Linux
Feb 29, 2020 · Fundamentals

Master the Linux ‘ls’ Command: 20 Essential Options Explained

This guide introduces the Linux ls command, explains its default behavior, and provides detailed examples of twenty useful options—including long listings, human‑readable sizes, sorting, recursive listing, and more—so readers can efficiently list and inspect files and directories.

Command LineUnixfile management
0 likes · 8 min read
Master the Linux ‘ls’ Command: 20 Essential Options Explained
Open Source Linux
Open Source Linux
Feb 28, 2020 · Fundamentals

Master Linux Directory Structure: From Root to Essential System Paths

This guide explains the Linux filesystem hierarchy, comparing it with Windows, detailing the root‑based tree layout, the historical evolution of Unix directories, the Filesystem Hierarchy Standard, and the most important top‑level directories and configuration files for system administration.

Directory StructureFHSLinux
0 likes · 14 min read
Master Linux Directory Structure: From Root to Essential System Paths
Open Source Linux
Open Source Linux
Feb 21, 2020 · Operations

Master Linux ‘find’ Command: Syntax, Options, and Practical Examples

This guide introduces the powerful Linux find command, explaining its syntax, common options such as -name, -type, -perm, and actions like -print, -exec, and -ok, and provides numerous practical examples for searching files by name, path, permissions, type, size, time, and executing commands on matches.

File SearchLinuxUnix
0 likes · 6 min read
Master Linux ‘find’ Command: Syntax, Options, and Practical Examples
Open Source Linux
Open Source Linux
Feb 18, 2020 · Fundamentals

Master Linux Hard and Symbolic Links: When and How to Use ln

This guide explains the concepts, differences, and practical commands for creating hard links and symbolic (soft) links in Linux, illustrating their behavior with examples, showing their advantages, limitations, and how link counts change across files and directories.

Hard LinkLinuxSymbolic Link
0 likes · 8 min read
Master Linux Hard and Symbolic Links: When and How to Use ln
Architects' Tech Alliance
Architects' Tech Alliance
Jan 30, 2020 · Fundamentals

The History and Relationship of UNIX, Linux, and GNU

This article provides a comprehensive overview of the origins, evolution, legal disputes, and architectural differences of UNIX, its BSD offshoots, the GNU project, and the Linux kernel, highlighting their intertwined development and impact on modern operating systems.

GNULinuxOpen Source
0 likes · 26 min read
The History and Relationship of UNIX, Linux, and GNU
Liangxu Linux
Liangxu Linux
Jan 20, 2020 · Fundamentals

Master Unix Shell: Automate File Tasks with For Loops and Find

This guide shows how to use Unix shell for‑loops and the find command to batch‑process files, resize images with ImageMagick, limit iterations, handle numeric loops, and adapt the syntax for different shells, providing practical examples and complete command snippets.

ImageMagickUnixfind
0 likes · 11 min read
Master Unix Shell: Automate File Tasks with For Loops and Find
ITPUB
ITPUB
Jan 20, 2020 · Fundamentals

Mastering Unix Shell For Loops and Find to Automate Batch File Operations

This guide explains how to use Unix shell for‑loops and the find command to batch‑process files, covering basic syntax, practical ImageMagick examples, loop restrictions, variations across shells, and advanced find‑exec techniques for efficient automation.

AutomationImageMagickUnix
0 likes · 11 min read
Mastering Unix Shell For Loops and Find to Automate Batch File Operations
ITPUB
ITPUB
Jan 10, 2020 · Fundamentals

Understanding Inodes: How Unix/Linux Stores File Metadata

This article explains Unix/Linux inodes—the metadata structures that store file information—covering their purpose, contents, size considerations, inode numbers, directory handling, hard and soft links, and special inode-related operations, with practical command examples and visual illustrations.

Hard LinkLinuxMetadata
0 likes · 10 min read
Understanding Inodes: How Unix/Linux Stores File Metadata
ITPUB
ITPUB
Jan 9, 2020 · Fundamentals

Master Essential Unix Commands: wget, scp, ssh-keygen, chmod, tar & Aliases

This guide walks experienced command‑line users through six essential Unix utilities—wget, scp, ssh-keygen, chmod, tar, and alias—explaining their purpose, key options, and practical examples such as downloading files, secure copying, key generation, permission management, archiving, and command shortcuts.

Unixaliaschmod
0 likes · 8 min read
Master Essential Unix Commands: wget, scp, ssh-keygen, chmod, tar & Aliases
ITPUB
ITPUB
Jan 8, 2020 · Fundamentals

Why Unix Treats Everything as a File: Unpacking the File Descriptor Model

The article explains Unix's core design that treats files, devices, sockets, and pipes as unified resources accessed via file descriptors, discusses the abstraction trade‑offs, and pays tribute to the pioneers behind these concepts while illustrating the ideas with several diagrams.

LinuxOperating SystemsUnix
0 likes · 3 min read
Why Unix Treats Everything as a File: Unpacking the File Descriptor Model
Liangxu Linux
Liangxu Linux
Dec 29, 2019 · Operations

Master Linux File Permissions: chown, chgrp, and chmod Explained

This guide explains Linux's three identity types (owner, group, others) and their read/write/execute permissions, shows how to interpret ls -al output, and provides detailed syntax, options, and practical examples for changing owners with chown, groups with chgrp, and permissions with chmod using both symbolic and numeric methods.

LinuxUnixchgrp
0 likes · 10 min read
Master Linux File Permissions: chown, chgrp, and chmod Explained
Programmer DD
Programmer DD
Dec 23, 2019 · Fundamentals

Mastering Essential Shell Tricks: Pipes, Redirection, and Find Commands

This article explains three crucial shell constructs—pipes, redirection operators, and backslash usage—showing how to combine commands, direct output to files, and pass command results as arguments, with practical examples and a script for archiving recently modified files.

PipeRedirectionScripting
0 likes · 3 min read
Mastering Essential Shell Tricks: Pipes, Redirection, and Find Commands
Programmer DD
Programmer DD
Nov 22, 2019 · Backend Development

Master Multi‑Version Java Management with SDKMAN: Install, Switch, and Upgrade

This article explains why managing multiple Java versions is necessary, introduces SDKMAN as a cross‑platform tool, and provides step‑by‑step commands for installing, listing, switching, setting defaults, flushing caches, and uninstalling SDKMAN on Unix‑like systems and Windows.

Command LineInstallationSDKMAN
0 likes · 9 min read
Master Multi‑Version Java Management with SDKMAN: Install, Switch, and Upgrade
Architects' Tech Alliance
Architects' Tech Alliance
Oct 15, 2019 · Industry Insights

How Unix’s 50‑Year Journey Shaped the Smartphones We Use Today

This article traces Unix’s half‑century evolution from a failed Multics project at Bell Labs, through the resource‑scarce PDP‑7 experiments that birthed UNICS, to its legacy in BSD, Linux and ultimately the Android and iOS operating systems that power modern smartphones.

Bell LabsMulticsOperating System History
0 likes · 19 min read
How Unix’s 50‑Year Journey Shaped the Smartphones We Use Today
21CTO
21CTO
Oct 13, 2019 · Information Security

How Ken Thompson’s Vintage Unix Password Was Finally Cracked

Leah Neukirchen uncovered historic Unix passwords, cracked many using John the Ripper and hashcat, and after months of effort Nigel Williams finally revealed Ken Thompson’s long‑uncracked password, which turns out to be a clever chess‑notation hint.

Ken ThompsonUnixcrypt
0 likes · 4 min read
How Ken Thompson’s Vintage Unix Password Was Finally Cracked
ITPUB
ITPUB
Aug 25, 2019 · Fundamentals

Master Linux File System: What Every Directory Means and How to Use Them

This guide walks you through the Linux file system hierarchy, explaining the purpose of each top‑level directory—from /bin and /sbin to /home and hidden config folders—so you can navigate, modify, and troubleshoot your system with confidence.

CLIDirectory StructureLinux
0 likes · 12 min read
Master Linux File System: What Every Directory Means and How to Use Them
Efficient Ops
Efficient Ops
Jul 10, 2019 · Fundamentals

Mastering sed: Powerful Text Editing and Stream Processing in Linux

This article provides a comprehensive guide to the Linux stream editor sed, covering its batch processing workflow, core options (-e, -f, -n), common commands for substitution, deletion, insertion, line addressing, pattern filtering, transliteration, and file I/O with clear examples and code snippets.

Command LineLinuxShell scripting
0 likes · 12 min read
Mastering sed: Powerful Text Editing and Stream Processing in Linux
Architects' Tech Alliance
Architects' Tech Alliance
Jun 28, 2019 · Fundamentals

Evolution and Concepts of Microkernel Architecture

This article traces the evolution of microkernel architecture from its origins in the UNIX family, explains the macrokernel versus microkernel design, details the three generations of microkernels such as Mach, L4, and seL4, and outlines their advantages, disadvantages, and examples like Fuchsia and Minix.

Unixkernel architecturemicrokernel
0 likes · 13 min read
Evolution and Concepts of Microkernel Architecture
21CTO
21CTO
Jun 6, 2019 · Fundamentals

Unix vs Linux: Uncover the History and Key Differences Shaping Modern Computing

This article traces the origins of Unix from the 1960s AT&T Bell Labs project, explains how Linux emerged from the GNU initiative and Linus Torvalds' kernel, and compares their philosophies, licensing, ecosystem, and current relevance across servers, cloud, embedded devices, and modern development.

BSDLinuxOpen Source
0 likes · 12 min read
Unix vs Linux: Uncover the History and Key Differences Shaping Modern Computing
Architecture Digest
Architecture Digest
Apr 9, 2019 · Fundamentals

Operating System Fundamentals, History, Types, and Linux Overview

This article provides a comprehensive overview of operating systems, covering their definition, core components, historical evolution, classifications, key functions, the GNU/Linux ecosystem, licensing models, versioning schemes, major distributions, package managers, and the role of Linux in modern computing environments.

LinuxOpen SourcePackage Management
0 likes · 39 min read
Operating System Fundamentals, History, Types, and Linux Overview
ITPUB
ITPUB
Mar 26, 2019 · Fundamentals

Essential Linux Command Cheat Sheet: Master ls, cd, grep, and More

This guide provides concise explanations and practical examples for the most commonly used Linux shell commands—including ls, cd, pwd, mkdir, cp, mv, rm, du, df, cat, echo, less, head, tail, wc, grep, man, logout, pipes, xargs, basename, dirname, and set—helping beginners quickly become proficient with the command line.

LinuxUnixbasics
0 likes · 14 min read
Essential Linux Command Cheat Sheet: Master ls, cd, grep, and More
21CTO
21CTO
Jan 17, 2019 · Fundamentals

How Dennis Ritchie Shaped Modern Computing: The Story Behind C and Unix

Dennis Ritchie, the creator of the C programming language and co‑developer of Unix, transformed modern computing through his pioneering work at Bell Labs, his collaboration with Ken Thompson, and the lasting influence of his innovations on operating systems, programming practices, and today’s software ecosystem.

C languageComputer HistoryDennis Ritchie
0 likes · 8 min read
How Dennis Ritchie Shaped Modern Computing: The Story Behind C and Unix
21CTO
21CTO
Jan 15, 2019 · Fundamentals

10 Essential Skills Every Aspiring Programmer Must Master

This guide outlines the ten core competencies—from data structures and version control to IDEs, databases, Unix, Excel, programming languages, networking, and scripting—that every new or aspiring software developer should master to build a successful career.

Data StructuresDatabasesUnix
0 likes · 8 min read
10 Essential Skills Every Aspiring Programmer Must Master
MaGe Linux Operations
MaGe Linux Operations
Jan 5, 2019 · Fundamentals

Master Linux: Understanding Every Directory and Its Purpose

This guide explains the purpose and typical contents of each major Linux directory—from /bin and /sbin for essential binaries to /etc for configuration files, /proc for virtual system information, and /usr, /var, /home for user data and applications—providing a comprehensive overview for system administrators and developers.

Directory StructureLinuxUnix
0 likes · 17 min read
Master Linux: Understanding Every Directory and Its Purpose
MaGe Linux Operations
MaGe Linux Operations
Nov 14, 2018 · Operations

35 Essential Linux Find Command Examples for Mastering File Searches

This article presents 35 practical Linux find command examples, organized into five sections covering name‑based searches, permission filters, owner/group criteria, date‑time ranges, and size constraints, each illustrated with clear screenshots and step‑by‑step explanations.

Command LineFile SearchLinux
0 likes · 9 min read
35 Essential Linux Find Command Examples for Mastering File Searches
ITPUB
ITPUB
Nov 1, 2018 · Fundamentals

20 Essential Unix Command‑Line Tricks Every Sysadmin Should Know

This guide presents twenty practical Unix shell techniques—from safely deleting massive log files and recording terminal sessions to comparing directories, formatting output, and using shortcuts like !! and $!—providing clear commands and examples that help administrators work more efficiently and avoid common pitfalls.

LinuxUnixshell
0 likes · 11 min read
20 Essential Unix Command‑Line Tricks Every Sysadmin Should Know
ITPUB
ITPUB
Oct 23, 2018 · Fundamentals

10 Essential Unix Command-Line Tricks to Boost Your Productivity

This article presents ten practical Unix command-line habits—including file name completion, history expansion, directory stack navigation, large‑file searching, temporary file creation, curl usage, regular‑expression tips, user identification, and awk data processing—each illustrated with clear examples and commands to help users work faster and more efficiently.

LinuxUnixawk
0 likes · 13 min read
10 Essential Unix Command-Line Tricks to Boost Your Productivity
ITPUB
ITPUB
Oct 12, 2018 · Operations

Decoding Common Linux Command Abbreviations: A Handy Reference

This article provides a concise reference of common Linux command abbreviations, explaining each command's purpose—from navigating directories and managing files to monitoring processes and handling system resources—helping users quickly understand and use these essential shell utilities.

LinuxUnixshell
0 likes · 10 min read
Decoding Common Linux Command Abbreviations: A Handy Reference
ITPUB
ITPUB
Oct 8, 2018 · Fundamentals

From ed to Vim: The Untold History of Text Editing

This article traces the evolution of Unix text editors—from the early line editor ed, through QED, ex, and vi, to the modern Vim—explaining how historical decisions shaped features like :wq, yanking, and syntax highlighting, and why Vim remains a dominant tool for developers today.

Text EditorUnixVi
0 likes · 15 min read
From ed to Vim: The Untold History of Text Editing
MaGe Linux Operations
MaGe Linux Operations
Sep 25, 2018 · Operations

Essential Linux Command Cheat Sheet: Decode Common Abbreviations

This article provides a comprehensive reference of common Linux command abbreviations, explaining each command's purpose—from file manipulation and process monitoring to package management and system utilities—helping users quickly understand and use the Unix shell effectively.

CLILinuxUnix
0 likes · 13 min read
Essential Linux Command Cheat Sheet: Decode Common Abbreviations
MaGe Linux Operations
MaGe Linux Operations
Sep 12, 2018 · Operations

35 Essential Linux Find Command Examples Every Sysadmin Should Know

Discover 35 practical Linux find command examples covering name, permission, owner/group, date, and size based searches, complete with step‑by‑step illustrations, enabling you to locate, filter, and manage files and directories efficiently in everyday system administration tasks.

File SearchLinuxUnix
0 likes · 11 min read
35 Essential Linux Find Command Examples Every Sysadmin Should Know
21CTO
21CTO
Aug 5, 2018 · Fundamentals

What Is Linux? A 1991 Primer on the Free Unix‑Like Kernel

Linux is a free Unix‑like kernel originally written for 386‑AT computers, described by Linus Torvalds in 1991, covering its source‑code licensing, hardware requirements, download sources, installation steps, missing features, and early ported utilities, offering a historical snapshot of early open‑source OS development.

HistoricalInstallationLinux
0 likes · 15 min read
What Is Linux? A 1991 Primer on the Free Unix‑Like Kernel
MaGe Linux Operations
MaGe Linux Operations
Jul 24, 2018 · Fundamentals

Unix vs Linux: What’s the Real Difference and Why It Matters

From its AT&T Bell Labs origins to modern cloud servers, this article traces Unix’s evolution, explains how Linux emerged from the GNU project, and compares the two systems’ philosophies, licensing, and practical differences for developers and enterprises today.

LinuxOpen SourceOperating Systems
0 likes · 12 min read
Unix vs Linux: What’s the Real Difference and Why It Matters
DevOps Cloud Academy
DevOps Cloud Academy
Jun 12, 2018 · Fundamentals

Understanding Shell Global and Local Variables

This article explains how to display and set environment variables in a Unix shell using commands like env and export, and demonstrates the behavior of global and local variables across parent and child shells with practical bash examples.

Global VariableUnixbash
0 likes · 2 min read
Understanding Shell Global and Local Variables
21CTO
21CTO
May 31, 2018 · Operations

20 Essential Unix/Linux Command‑Line Tricks Every Sysadmin Should Know

This guide compiles twenty practical Unix/Linux command‑line techniques—from safely deleting massive log files and recording terminal sessions to comparing directories, formatting text, and using tee for simultaneous output—providing sysadmins with quick, reliable shortcuts for everyday system management tasks.

LinuxUnixsysadmin
0 likes · 12 min read
20 Essential Unix/Linux Command‑Line Tricks Every Sysadmin Should Know
ITPUB
ITPUB
May 28, 2018 · Fundamentals

20 Essential Unix Command-Line Tricks Every Sysadmin Should Know

A concise collection of practical Unix/Linux command-line tips—including file deletion, output logging, terminal recording, permission handling, and more—designed to boost productivity and simplify common system administration tasks.

Command LineLinuxShell Tips
0 likes · 10 min read
20 Essential Unix Command-Line Tricks Every Sysadmin Should Know
MaGe Linux Operations
MaGe Linux Operations
May 22, 2018 · Fundamentals

Master the Linux ‘ls’ Command: 20 Essential Options Explained

This guide introduces the Linux ls command, explains its basic purpose, and walks through twenty practical options—including long listings, human‑readable sizes, sorting, hidden files, recursive listing, and version display—complete with example commands and screenshots for each feature.

LinuxUnixfile listing
0 likes · 10 min read
Master the Linux ‘ls’ Command: 20 Essential Options Explained
ITPUB
ITPUB
May 17, 2018 · Fundamentals

20 Essential Unix/Linux Command-Line Tricks to Boost Your Productivity

This article compiles twenty practical Unix/Linux command-line techniques—including fast file deletion, output logging, directory restoration, permission locking, password‑protecting files, screen resetting, human‑readable output, user listing, batch removal, process monitoring, command repetition, timed reminders, navigation shortcuts, in‑less editing, directory tree creation, multi‑directory copying, diff comparison, text formatting, and tee usage—each illustrated with exact commands to enhance terminal efficiency.

Command LineLinuxUnix
0 likes · 11 min read
20 Essential Unix/Linux Command-Line Tricks to Boost Your Productivity
ITPUB
ITPUB
Dec 26, 2017 · Fundamentals

How Unix Philosophy Shapes Modern Command‑Line, Desktop, and Mobile Workflows

The article explains how the timeless Unix philosophy of single‑purpose tools and text‑stream pipelines guides the author’s workflow across command‑line, desktop editors like Sublime Text, preview tools such as Marked, and mobile utilities, emphasizing modularity, efficiency, and open file sharing.

Command LineMarkdownPandoc
0 likes · 14 min read
How Unix Philosophy Shapes Modern Command‑Line, Desktop, and Mobile Workflows
MaGe Linux Operations
MaGe Linux Operations
Dec 15, 2017 · Fundamentals

7 Essential Linux Terminal Tricks Every Beginner Should Master

This guide introduces seven core Bash techniques—including tab completion, piping, wildcards, output redirection, command history, background execution, and conditional chaining—to help Linux users work more efficiently and confidently across distributions.

Command LineShell TipsUnix
0 likes · 6 min read
7 Essential Linux Terminal Tricks Every Beginner Should Master
MaGe Linux Operations
MaGe Linux Operations
Dec 9, 2017 · Fundamentals

Mastering Awk: From Basics to Advanced Text Processing

This comprehensive guide introduces Awk, explains its command‑line syntax, script structure, patterns, built‑in variables, arrays, functions, operators, statements, I/O handling, and practical examples, enabling readers to harness Awk for powerful text processing tasks on Unix-like systems.

Shell scriptingUnixawk
0 likes · 31 min read
Mastering Awk: From Basics to Advanced Text Processing
ITPUB
ITPUB
Dec 5, 2017 · Fundamentals

Master Linux Shell Navigation: cd, pwd, and Handy Keyboard Shortcuts

This guide explains how to display the current directory, change directories using relative and absolute paths, leverage special symbols like ~ and -, chain commands with pipes and logical operators, and use essential Ctrl shortcuts and other common shell commands for efficient terminal work.

CDCommand LineLinux
0 likes · 7 min read
Master Linux Shell Navigation: cd, pwd, and Handy Keyboard Shortcuts
ITPUB
ITPUB
Nov 16, 2017 · Operations

Essential Linux Command Cheat Sheet: Master System Operations

This article presents a comprehensive, categorized reference of common Linux commands—covering help utilities, file manipulation, content viewing, system information, networking, user management, compression, permissions, process control, and monitoring—each with concise English descriptions to aid quick mastery of command‑line operations.

Command LineLinuxUnix
0 likes · 15 min read
Essential Linux Command Cheat Sheet: Master System Operations
MaGe Linux Operations
MaGe Linux Operations
Nov 7, 2017 · Operations

10 Little‑Known Linux Commands That Supercharge Your Workflow

This article introduces a collection of lesser‑known Linux commands—such as sudo !!, python -m SimpleHTTPServer, mtr, Ctrl+x+e, nl, shuf, ss, last, curl ifconfig.me, tree, and pstree—explaining their purpose and providing concise usage examples to help both beginners and seasoned administrators work more efficiently.

Command LineUnixshell
0 likes · 8 min read
10 Little‑Known Linux Commands That Supercharge Your Workflow
ITPUB
ITPUB
Oct 23, 2017 · Fundamentals

Essential Unix/Linux Commands Every User Should Master

This guide presents over forty essential Unix/Linux commands with concise explanations and practical examples, covering file manipulation, process control, networking, system monitoring, and package management to help beginners and intermediate users efficiently operate a Linux environment.

Command LineUnixshell
0 likes · 21 min read
Essential Unix/Linux Commands Every User Should Master
Senior Brother's Insights
Senior Brother's Insights
Oct 12, 2017 · Blockchain

How to Retrieve and Convert Blockchain Block Timestamps in Java

This guide explains that blockchain block creation times are stored as Unix timestamps in seconds, describes the Unix time concept, shows how to convert timestamps in Java from milliseconds to seconds and back, and provides a concrete Ethereum example using Web3.js to fetch a block’s timestamp.

Unixtimestamp
0 likes · 2 min read
How to Retrieve and Convert Blockchain Block Timestamps in Java
Architects' Tech Alliance
Architects' Tech Alliance
Oct 8, 2017 · Fundamentals

History and Evolution of Unix and the XNU Kernel

The article traces the origins of Unix, its various branches such as BSD, System V, and modern derivatives like XNU, AIX, Solaris, and Linux, highlighting key historical milestones, licensing, and the impact of open‑source releases on developers.

Open SourceOperating SystemsUnix
0 likes · 10 min read
History and Evolution of Unix and the XNU Kernel
ITPUB
ITPUB
Sep 27, 2017 · Operations

Master Powerful Unix One-Liners for File Merging, Stats, and Automation

This guide presents a collection of concise Unix one‑liners that act as Swiss‑army‑knife tools for merging files, computing unions, intersections and differences, summing columns, listing file metadata, and leveraging xargs for flexible batch processing, all with minimal code.

File ProcessingOne-linersUnix
0 likes · 6 min read
Master Powerful Unix One-Liners for File Merging, Stats, and Automation
Architecture Digest
Architecture Digest
Sep 4, 2017 · Fundamentals

15 Essential Linux Command Line Tricks You Might Have Forgotten

This article presents a collection of fifteen practical Linux command‑line techniques—including table‑style output, looping until success, sorting processes, architecture checks, multitail monitoring, directory navigation shortcuts, interactive shell tweaks, watch usage, nohup persistence, yes/no automation, file creation with dd, sudo shortcuts, session recording, character replacement, case conversion, and advanced xargs pipelines—aimed at boosting productivity for everyday terminal users.

Command LineLinuxScripting
0 likes · 7 min read
15 Essential Linux Command Line Tricks You Might Have Forgotten