Ways to modify/etc/profile files in Linux systems

In the Linux system, etc/profile files are generally not changed, want to change the Etc/profile file with some special techniques for Linux file modification . This article describes how to modify the/etc/profile file in a Linux system:

The Etc/profile file is read-only and cannot be saved directly with VI or gedit open modification. To modify profile, you need to get root permission (edit with Gedit)

$sudo Gedit/etc/profile

Or

$sudo-S

$gedit/etc/profile

This opens the profile file and you can save it after you modify it.

The method to make the modified profile effective immediately:

Method 1:

$. /etc/profile

。 There is a space between the/etc/profile and the

Method 2:

$source/etc/profile

The source command, also known as a Point command, is a dot symbol (. ）。 The source command is typically used to re-execute the initialization file you just modified to take effect immediately without having to log off and log back on.

The above is the Linux system to modify the/etc/profile file method, as long as the administrator rights, even if the Etc/profile file is a system file, can also be modified OH.

This article is from the "Sandshell" blog, make sure to keep this source http://sandshell.blog.51cto.com/9055959/1955796

Ways to modify/etc/profile files in Linux systems