Managing file permissions using groups

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To allow set of users to have access to same set of files groups can be used.

Creating groups

To create group use:

groupadd <group_name>

Adding users to groups

Then users can be added to group using:

usermod -a -G <group_name> usernames

Setting proper group permissions on files

Finall change the group of files / folders to desired group using:

chgrp -R <group_name> files

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