Linux Permissions

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/