Linux user management script

user-management.sh

#!/bin/bash
# Linux user management script

# to list all user on linux environment (listed in /etc/passwd)
getent passwd

# to list all groups on linux environment (listed in /etc/group)
getent group

# to add a new user, with sudo this add sudoers privilegies
sudo adduser new_username [group_name] [sudo]

# to remove a user
sudo userdel username

# use with caution!
# to delete the home directory for the deleted user 
sudo rm -r /home/username

# to delete the home directory/mails
# sudo deluser --remove-home username
# to delete the user an all files owned by on whole system
# sudo deluser --remove-all-files username

# to change the password of a user
sudo passwd username

# to change the details for a user (name, office, phones)
sudo chfn username

# to check the groups for a user
sudo groups username

# to add user to a groups
sudo usermod -a -G groups_list username

##
# add user to sudores, edit the file and add
# username ALL=(ALL) ALL
vim /etc/sudoers # sudo visudo