Introduction

Linux is an open-source operating system kernel originally developed by Linus Torvalds in 1991. Linux commands form the backbone of system management and interaction in Linux-based operating systems. They are powerful tools that allow users to perform a wide range of tasks efficiently from the command line interface.

LINUX COMMANDS

1. cal: This displays the calendar.
   

2. export -p: This shows a list of all currently exported environment
   variables.
   

3. printenv: Displays the values of all evironment variables.
   

4. who: This shows who is currently logged in.
   

5. uname: This displays system information.
   

6. last: This shows the recent login history of users.
   

7. finger: This shows information about all the users currently logged into the system, including their usernames, login time and terminal.
   

8. last reboot: This shows reboot history
   

9. df: This displays free disk space.
   

10. w: This shows which users are online and what they are doing.
    

Conclusion

Linux commands are essential tools for managing files, monitoring system resources, and administering networks efficiently. Whether you're a system administrator, developer, or everyday user, mastering these commands empowers you to navigate and control Linux environments effectively. Their versatility and durability make Linux a powerful choice for a wide range of computing tasks, ensuring reliability and efficiency in system operations.