Essential Linux Commands for User, System Management and Performance Monitoring
This article explains essential Linux commands for programmers, covering user management, system administration, and performance monitoring, describes how Linux treats everything as a file, distinguishes Linux and shell commands, and suggests learning 10‑20 commands daily, with visual examples.
Linux commands are instructions for managing a Linux system, analogous to graphical actions in Windows.
In Linux, all resources—including CPU, memory, keyboard, and users—are represented as files; commands operate on these file abstractions, similar to DOS commands.
Commands are divided into two categories: native Linux commands and shell commands.
A gradual learning strategy suggests mastering roughly ten to twenty commands per day to become comfortable with basic operations.
User Management Commands
This section introduces commands used for creating, modifying, and deleting user accounts, groups, and related permissions.
User Management, System Management, and Performance Monitoring
The article continues from a previous discussion of information‑display and file‑search commands and now focuses on commands for managing users, administering the system, and monitoring performance.
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