Top 50 Linux Commands You Must Know as a Regular User

1. ls - The most frequently used command in Linux to list directories
2. pwd - Print working directory command in Linux
3. cd - Linux command to navigate through directories
4. mkdir - Command used to create directories in Linux
5. mv - Move or rename files in Linux
6. cp - Similar usage as mv but for copying files in Linux
7. rm - Delete files or directories
8. touch - Create blank/empty files
9. ln - Create symbolic links (shortcuts) to other files
10. cat - Display file contents on the terminal
11. clear - Clear the terminal display
12. echo - Print any text that follows the command
13. less - Linux command to display paged outputs in the terminal
14. man - Access manual pages for all Linux commands
15. uname - Linux command to get basic information about the OS
16. whoami - Get the active username
17. tar - Command to extract and compress files in Linux
18. grep - Search for a string within an output
19. head - Return the specified number of lines from the top
20. tail - Return the specified number of lines from the bottom
21. diff - Find the difference between two files
22. cmp - Allows you to check if two files are identical
23. comm - Combines the functionality of diff and cmp
24. sort - Linux command to sort the content of a file while outputting
25. export - Export environment variables in Linux
26. zip - Zip files in Linux
27. unzip - Unzip files in Linux
28. ssh - Secure Shell command in Linux
29. service - Linux command to start and stop services
30. ps - Display active processes
31. kill and killall - Kill active processes by process ID or name
32. df - Display disk filesystem information
33. mount - Mount file systems in Linux
34. chmod - Command to change file permissions
35. chown - Command for granting ownership of files or folders
36. ifconfig - Display network interfaces and IP addresses
37. traceroute - Trace all the network hops to reach the destination
38. wget - Direct download files from the internet
39. ufw - Firewall command
40. iptables - Base firewall for all other firewall utilities to interface with
41. apt, pacman, yum, rpm - Package managers depending on the distro
42. sudo - Command to escalate privileges in Linux
43. cal - View a command-line calendar
44. alias - Create custom shortcuts for your regularly used commands
45. dd - Majorly used for creating bootable USB sticks
46. whereis - Locate the binary, source, and manual pages for a command
47. whatis - Find what a command is used for
48. top - View active processes live with their system usage
49. useradd and usermod - Add new user or change existing users data
50. passwd - Create or update passwords for existing users