If you are a beginner in Linux and wondering is there a need to learn commands then I have a question for you.

Do you want to consume full power of the Linux OS then you must consider.

Following are the points why you must consider learning commands in Linux

• Knowing commands you have better control over the computer than just knowing the GUI which is always limited

• Command line is a more direct interface with the Linux system

• Faster than GUI mode, in most of the cases like listing specific files will be faster in command line than in a graphical way

• You can automate repeated tasks, for example, converting image files to specific sizes or deleting temporary files from the computer, etc.

Ruslan Osipov in his blog post [ Power of Command Line]

(rosipov.com/blog/power-of-the-command-line) gives very nice examples as Following

To make Backup file steps you will perform

Right click file.
Left click on “Copy”.
Right click on some empty space.
Left click on “Paste”.
Right click on a newly created copy.
Left click on “Rename”.
Switch to a keyboard.
Type file.bak.

Whereas in bash shell using the command line

cp file{,.bak}

He has also given the comparison table as follows

Factor	CLI	GUI
Ability to combine/chain tools	Yes	No
Easy to learn	No	Yes
Efficient for a novice user	No	Yes
Efficient for an experienced user	Yes	No
Good for occasional use	No	Yes
Good for repetitive tasks	Yes	No
Presents visual information well	No	Yes