Linux Permissions
From James's Wiki
https://www.geeksforgeeks.org/linux-setfacl-command-with-example/
list 'real' users
cut -d: -f1,3 /etc/passwd | egrep ':[0-9]{4}$' | cut -d: -f1
create a new group
sudo groupadd mynewgroup
view groups of a user
groups exampleusername
show ids associated with groups etc
id exampleusername
add user to group
usermod -a -G examplegroup exampleusername
give group seedbox rwx permission for /media/seedbox
setfacl -m g:seedbox:rwx /media/seedbox/
show facl info
getfacl /media/seedbox/
