Linux users and groups

Wed, Nov 30, 2016

Groups

List all groups

cat /etc/group

Create new group

https://linux.die.net/man/8/groupadd

groupadd mygroup

Use -f to exit successfully if the group already exists.

Users

List all users

cat /etc/passwd

Create new user

useradd -g GROUP -d HOMEDIR USERNAME

Will fail if GROUP does not exist yet.

Print a user’s home directory

echo ~username

Print user information

id -u tomcat

Print all files owned by a user

find / -user tomcat -print

Delete a user and the user’s home directory

userdel -r tomcat"