[SOLVED] Directory - all permissions that belong in its group?

Issue

I have created group (lets call this user admin):

sudo groupadd mygroup

switched to user test (from admin user):

sudo su - test
cd /home/test/
mkdir external
exit
cd /home/test/
sudo chgrp -R mygroup external
sudo usermod -a -G mygroup admin
sudo usermod -a -G mygroup test
sudo chmod -R g=rwx external

Now I do this:

cd external
mkdir something
mkdir: cannot create directory ‘something’: Permission denied

So how can I make that everyone that has mygroup would have all access like the owner does? So I could create inside external directory any other directory or file, delete it and so on (without using sudo).

P.S.

ls -l:
drwxrwxr-x 2 test mygroup 4096 Spa 15 16:24 external
getent group mygroup:
ambulance:x:1002:admin,test

Solution

sudo groupadd mygroup
mkdir external
sudo chown -R root:mygroup external
sudo chmod -R 'g+w' external
sudo chmod -R 'g+s' external

Answered By - Claudio

Answer Checked By - Marilyn (WPSolving Volunteer)