Modify the/etc/profile file in Linux

Modify the/etc/profile file in Linux

Normally, the/etc/profile file is read-only and cannot be saved after being opened and modified using vi or gedit. To modify the profile, you must obtain the root permission (use gedit to edit) as follows:

$ Sudo gedit/etc/profile

Or

$ Sudo-s

$ Gedit/etc/profile

In this way, open the profile file and save it after modification.

How to make the modified profile take effect immediately:

Method 1:

$./Etc/profile

There is a space between. and/etc/profile

Issue 2:

$ Source/etc/profile

The source command is also called the "dot command", that is, a dot symbol (.). The source command is usually used to re-execute the modified initialization file to make it take effect immediately without logging out and logging on again.

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