Setting Group Permission of a Folder in Linux

make sure user is in the group:

sudo usermod -a -G <group-_name> <some_user>

set the correct permissions on group:

sudo chgrp -R <group-_name> <folder>
sudo chmod -R g+w <folder>

make sure all new files and directories created under <folder> are owned by the group:

sudo find <folder> -type d -exec chmod 2775 {} \;  

Find all files in <folder> and add read and write permission for owner and group:



sudo find <folder> -type f -exec chmod ug+rw {} \;