63 lines
1020 B
Markdown
63 lines
1020 B
Markdown
---
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title: "Users and Groups"
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visible: true
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---
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[toc]
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## Users
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Check users by looking at `/etc/passwd`
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### Add users
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Basic usage:
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`# useradd -m (user)`
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Important options:
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```
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login name -> by default
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group -> -G //separate multiple by commas: group1,group2
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with home dir -> -m
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shell -> -s
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full name -> -c
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```
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Example more complicated usage:
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`# useradd -m -c "Bruno Huber" -s /bin/bash -G sudo,systemd-journal bruhub`
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### Remove user
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The command `userdel` can be used to remove users from a system.
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Using it with the `-r` additionally deletes the user home directory and mail spool.
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`# userdel -r (user)`
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### Add user to groups
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Add user to more groups:
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`# usermod -a -G (group1),(group2) (user)`
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Alternative command:
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`# gpasswd -a (user) (group)`
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### Remove user from group
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`# gpasswd -d (user) (group)`
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## Groups
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Check a user's groups with `id (user)`
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### Create group
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`# groupadd (group)`
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### Rename group
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`# groupmod -n (new_group) (old_group)`
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### Delete group
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`# groupdel (group)`
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