50 Important Linux Commands

50 Important Linux Commands

INTRODUCTION

Linux is a powerful and widely-used operating system, especially favored in servers, development environments, and cybersecurity. One of its defining strengths is the command-line interface (CLI), which gives users precise control over the system. Whether you’re navigating the file system, managing processes, or configuring system settings, mastering the terminal is key to becoming proficient in Linux.

This guide presents 50 essential Linux commands that form the foundation of everyday tasks. Whether you’re a beginner taking your first steps or an intermediate user looking to sharpen your skills, these commands will help you work more efficiently and confidently in the Linux environment.

 

Linux commands

  1. ls: List files and directories
  2. cd: Change the directory
  3. pwd: Print current working directory
  4. mkdir: Create a new directory
  5. rmdir: Remove empty directories
  6. rm: Remove files or directories
  7. cp: Copy files and directories
  8. mv: Move or rename files and directories
  9. touch: Create an empty file
  10. cat: View file contents
  11. more: View file contents page by page
  12. less: View file contents with backward movement
  13. head: View first lines of a file
  14. tail: View last lines of a file
  15. echo: Display a line of text
  16. man: Show manual for a command
  17. chmod: Change file permissions
  18. chown: Change file ownership
  19. find: Search for files in a directory hierarchy
  20. locate: Find files by name
  21. grep: Search text using patterns
  22. df: Display disk space usage
  23. du: Show file and directory space usage
  24. top: Display running processes
  25. ps: Report a snapshot of current processes
  26. kill: Terminate a process
  27. tar: Archive files
  28. zip: Compress files into a zip archive
  29. unzip: Extract zip archive
  30. ssh: Secure shell to a remote machine
  31. scp: Secure copy files between systems
  32. wget: Download files from the internet
  33. curl: Transfer data from or to a server
  34. nano: Simple text editor
  35. vim: Advanced text editor
  36. apt-get: Install packages in Debian-based systems
  37. yum: Install packages in RedHat-based systems
  38. sudo: Run command as superuser
  39. whoami: Show current user
  40. hostname: Show or set system hostname
  41. date: Display or set date and time
  42. uptime: Show how long the system has been running
  43. reboot: Reboot the system
  44. shutdown: Shut down the system
  45. history: Show command history
  46. clear: Clear the terminal screen
  47. alias: Create a shortcut for a command
  48. uname: Show system information
  49. free: Display memory usage
  50. env: Show environment variables