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Linux

Users and Groups

Linux

Create group

groupadd [name]

Create group (alternative)

addgroup [name]

Delete group

groupdel [name]

Rename group

groupmod -n [newGroupname] [oldGroupname]

Create user

useradd [name]

Create user (alternative)

adduser [name]

Delete user

userdel [name]

Delete user (alternative)

deluser [name]

Rename user

usermod -l [newUsername] [oldUsername]

Set user password

passwd [name]

Grant sudo privileges to an existing user

usermod -a -G sudo [user]

Grant sudo privileges to an existing user (alternative)

adduser [user] sudo

User information

finger [user]

Add existing user to group

usermod -aG [groupName] [userName]

Add existing user to group (alternative)

adduser [userName] [groupName]

Add existing user to group (another alternative)

gpasswd -a [userName] [groupName]

Add new user to group

useradd -G [group] [user]

Remove user from group

gpasswd -d [user] [group]

Remove user from group (alternative)

deluser [user] [group]

List all groups

getent group

List all groups (alternative)

cat /etc/group

List all users

getent passwd

List all users (alternative)

cat /etc/passwd

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Create groupCreate group (alternative)Delete groupRename groupCreate userCreate user (alternative)Delete userDelete user (alternative)Rename userSet user passwordGrant sudo privileges to an existing userGrant sudo privileges to an existing user (alternative)User informationAdd existing user to groupAdd existing user to group (alternative)Add existing user to group (another alternative)Add new user to groupRemove user from groupRemove user from group (alternative)List all groupsList all groups (alternative)List all usersList all users (alternative)
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