Linux Wiki

Dive into Linux fundamentals — from package management and systemd to permissions, shells, and filesystem structure.
Includes clear examples and practical commands for everyday use and sysadmin practice.

Command/cat – Concatenate and Display File Contents

Command/cd – Change Directory

Command/cp – Copy Files and Directories in Linux

Command/df – Report File System Disk Space Usage

Command/echo - Command in Linux – Practical Guide with Redirection, Checksums & Pipes

Command/free - Check Memory Usage Easily

Command/grep – Practical Search on Linux Shell

Command/ls – List Files and Directories

Command/mkdir – Make Directories

Command/mv – Move or Rename Files and Directories

Command/ps – Report Process Status

Command/pwd – Print Working Directory

Command/rmdir – Remove Empty Directories

Command/rm – Remove Files and Directories