How to save and exit after modifying a file under centos

The command to save the file is as follows:

Press the ESC key to jump to the command mode, then:

:w Save the file without exiting vi

:w file Save the modifications to file separately without exiting vi

:w! Force save without exiting vi

:wq Save the file and exit vi

:wq! Force save the file and exit vi

:q Do not save the file and exit vi

:q! Do not save the file and force exit vi

:e! Discard all changes and start editing from the last time you saved the file

Recommended tutorial:centos tutorial

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