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Some useful Linux Commands...

01. ls – The most frequently used command in Linux to list directories

02. pwd – Print working directory command in Linux

03. cd – Linux command to navigate through directories

04. mkdir – Command used to create directories in Linux

05. mv – Move or rename files in Linux

06. cp – Similar usage as mv but for copying files in Linux

07. rm – Delete files or directories

07. touch – Create blank/empty files

07. ln – Create symbolic links (shortcuts) to other files

08. cat – Display file contents on the terminal

09. clear – Clear the terminal display

10. echo – Print any text that follows the command

11. less – Linux command to display paged outputs in the terminal

12. man – Access manual pages for all Linux commands

13. uname – Linux command to get basic information about the OS

14. whoami – Get the active username

15. tar – Command to extract and compress files in Linux

16. grep – Search for a string within an output

17. head – Return the specified number of lines from the top

18. tail – Return the specified number of lines from the bottom

19. diff – Find the difference between two files

20. cmp – Allows you to check if two files are identical

21. comm – Combines the functionality of diff and cmp

22. sort – Linux command to sort the content of a file while outputting

23. export – Export environment variables in Linux

24. zip – Zip files in Linux

25. unzip – Unzip files in Linux

25. ssh – Secure Shell command in Linux

26. service – Linux command to start and stop services

27. ps – Display active processes

28. kill and killall – Kill active processes by process ID or name

29. df – Display disk filesystem information

30. mount – Mount file systems in Linux

31. chmod – Command to change file permissions

32. chown – Command for granting ownership of files or folders

33. ifconfig – Display network interfaces and IP addresses

34. traceroute – Trace all the network hops to reach the destination

35. wget – Direct download files from the internet

36. ufw – Firewall command

37. iptables – Base firewall for all other firewall utilities to interface with

38. apt, pacman, yum, rpm – Package managers depending on the distro

39. sudo – Command to escalate privileges in Linux

40. cal – View a command-line calendar

41. alias – Create custom shortcuts for your regularly used commands

42. dd – Majorly used for creating bootable USB sticks

43. whereis – Locate the binary, source, and manual pages for a command

44. whatis – Find what a command is used for

45. top – View active processes live with their system usage

46. useradd and usermod – Add new user or change existing users data

47. passwd – Create or update passwords for existing users