Vim is the most popular Linux text editor, it was created in 1978 and is used to present days.
Vim has two modes: “Command mode” where you can insert many commands, and “Insert mode” – where you can insert and edit text document. By default Vim open all documents in “Command mode”, to enter into the “Insert mode” – press button “i“.
The most asked question is – “How to exit Vim?” – it is very simple – in Command mode enter :q! and press Enter. This command exit Vim without saving any changes.
To save file – enter command :w <filename> and press Enter:
To save file and exit Vim use command :wq and press Enter