user_group.md

$> useradd -m -d /home/toto -u 1001 -g 11 -c “Comment" -s /bin/zsh gautier

-m : create home dir

To see defaults useradd -D

Create group

$> groupadd gautier -g 11

List group

$> getent group

Add user to group

$> usermod -aG wheel gautier

Password change:

$> passwd gautier
$> echo "1234" | passwd --stdin "gautier"
$> echo "gautier:1234" | chpasswd

Change owner

chown -R user:group file.txt

Change default shell

$> chsh -s /bin/zsh

/etc/skel vipw /etc/default/useradd /etc/login.defs chage -l gautier passwd -S gautier

getent passwd

su : substitue user mais garde l'env de depart su - : charge l'env de l'utilisateur