Linux commands are a set of instructions and utilities that you can use in a Linux or Unix-like operating system to perform various tasks, manage files, configure settings, and more. Here are some common Linux commands:
1. `ls`: List files and directories in the current location.
2. `cd`: Change the current directory.
3. `pwd`: Print the current working directory.
4. `mkdir`: Create a new directory.
5. `touch`: Create an empty file.
6. `rm`: Remove files or directories.
7. `cp`: Copy files or directories.
8. `mv`: Move or rename files or directories.
9. `cat`: Display the content of a file.
10. `grep`: Search for patterns in text.
11. `find`: Search for files and directories.
12. `chmod`: Change file permissions.
13. `chown`: Change file ownership.
14. `top` or `htop`: Monitor system processes.
15. `ps`: Display a list of running processes.
16. `kill`: Terminate processes.
17. `df`: Show disk space usage.
18. `du`: Display file and directory space usage.
19. `tar`: Archive and compress files.
20. `ssh`: Securely connect to remote servers.
These are just a few examples. Linux commands are powerful and can be combined to perform complex tasks. You can typically access the manual pages for these commands by using `man` followed by the command name to get more detailed information on their usage.