Manage services

sudo service $SERVICE [start|stop|enable|disable|restart]
# Examples using Apache
sudo service httpd start # or sudo apachectl start
sudo service httpd enable
sudo service httpd restart # or sudo apachectl restart


Add user with a group

A group will automatically be created for the user (e.g. mtr:mtr); -G will add them to additional (existing) groups.

# Options
-G # specify comma-separated groups to add the user to
-p # password for the new user (needs to go in encrypted)

List users

cat /etc/passwd

Switch to user

su - $USER # the - puts you into the user's home folder
# omitting user defaults to root