Add users on FreeBSD

The procedure is as follows:

1. Open the terminal app
2. Switch to root user account using sudo -i OR su -
3. Run adduser command for adding new users on FreeBSD interactively
4. Delete user using rmuser command

Let us see all examples in details. First, list all shells on system using the grep command:
grep '/bin/' /etc/shells

Creating FreeBSD users from the command line using adduser

Log in as root user using the sudo command/su command:
sudo -i
Create the vivek user on FreeBSD, run:
adduser

Confirm that user exists in the system

Run the following cat command or grep command/egrep command:
cat /etc/passwd
tail -1 /etc/passwd
grep '^username' /etc/passwd
grep '^vivek' /etc/passwd

How do I change or set the password for vivek user

Run the passwd command as follows:
passwd vivek

FreeBSD allow sudo privileges for user

Make sure sudo is installed on FreeBSD and wheel group is allowed as follows:
# visudo
Sample outputs:

## Uncomment to allow members of group wheel to execute any command
%wheel ALL=(ALL) ALL

Save and close the file. Any FreeBSD user who is a member of the wheel group can run a command using sudo. Use the id command to find out if vivek is part of wheel group
# id -Gn vivek
vivek wheel
If not add user vivek to the wheel group, run:
# pw groupmod wheel -m vivek
Verify it using the /etc/group file
# id -Gn vivek
# grep '^wheel' /etc/group

How to delete or remove user account

The rmuser command removes one or more users submitted on the command line or from a file in FreeBSD operating system. Run:
# rmuser username
# rmuser
## delete user named marlena
# rmuser marlena

id: marlena: no such user

How to use pw command

The pw command create, remove, modify & display system users and groups. It has many more options. For example:
pw user help
pw user add help
pw user del help
pw user mod help
pw group help
pw lock help
pw unlock help
In this example, add user named marlena as follows:
# pw user add -n marlena -c 'Marlean Root' -d /home/marlena -G wheel -m -s /usr/local/bin/bash
Where,

• -n marlena : login name
• -c 'Marlena Root' : user name/comment
• -d /home/marlena : home directory
• -G wheel : additional groups (add to wheel group)
• -m : create and set up home
• -s /usr/local/bin/bash : name of login shell

One can local and unlock FreeBSD user using the pw command:
# pw lock marlena
# pw unlock marlena
See pw command man page for more info:
man pw

Conclusion

This page demonstrated how to create several users on your FreeBSD Unix box, set passwords for those users, and delete them if the need arises using various commands.