Every Linux command have 3 parts :

cat abc.tx → 1st things is command (like below in image - cat) name 2nd things is option (-n) and (argument- which is file name below abc.txt).

Below are some basic commands in LINUX :
- Man
- list
- ls
- pwd
- cd
- ls and ls -a
- ls -l
- ls -a -l or ls -al
- ls -alh
- ls -alht → (Sort by the new time to old.)
- ls -alhtr → revers
- ls -l —sort=timen
- ls -l —sort=time -r
- cd .. & cd .
- cd / and cd ~
- mkdir
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