All basic commands:

1. man Used to see help/manual of a command. Example: man ls

2. ls Shows files and folders. Example: ls

3. pwd Shows current directory path. Example: pwd

4. cd Change directory. Example: cd Documents

5. ls and ls -a ls → normal files ls -a → shows hidden files Example: ls -a

6. ls -l Shows detailed file info. Example: ls -l

7. ls -al Shows detailed + hidden files. Example: ls -al

8. ls -alh Shows size in KB/MB (easy to read). Example: ls -alh

9. ls -alht Sort files from newest to oldest. Example: ls -alht

10. ls -alhtr Sort files from oldest to newest. Example: ls -alhtr

11. ls -l --sort=time Sort by time (newest first). Example: ls -l --sort=time

12. ls -l --sort=time -r Sort by time (oldest first). Example: ls -l --sort=time -r

13. cd .. and cd . cd .. → go one folder up cd . → stay in same folder Example: cd ..

14. cd / and cd ~ cd / → go to root directory cd ~ → go to home directory Example: cd ~

15. mkdir Create a folder. Example: mkdir myFolder

16. Touch
If you touch a non-existing file, it will be created. But if you touch an existing file, its modification time will be updated.