useradd, userdel, usedmod, users: refresh page (#7661)

pages/linux/useradd.md

@@ -1,24 +1,33 @@
 # useradd
 
 > Create a new user.
+> See also: `users`, `userdel`, `usermod`.
 > More information: <https://manned.org/useradd>.
 
-- Create new user:
+- Create a new user:
 
-`useradd {{name}}`
+`sudo useradd {{username}}`
 
-- Create new user with a default home directory:
+- Create a new user with the specified user id:
 
-`useradd --create-home {{name}}`
+`sudo useradd --uid {{id}} {{username}}`
 
-- Create new user with specified shell:
+- Create a new user with the specified shell:
 
-`useradd --shell {{path/to/shell}} {{name}}`
+`sudo useradd --shell {{path/to/shell}} {{username}}`
 
-- Create new user belonging to additional groups (mind the lack of whitespace):
+- Create a new user belonging to additional groups (mind the lack of whitespace):
 
-`useradd --groups {{group1,group2}} {{name}}`
+`sudo useradd --groups {{group1,group2,...}} {{username}}`
 
-- Create new system user without a home directory:
+- Create a new user with the default home directory:
 
-`useradd --no-create-home --system {{name}}`
+`sudo useradd --create-home {{username}}`
+
+- Create a new user with the home directory filled by template directory files:
+
+`sudo useradd --skel {{path/to/template_directory}} --create-home {{username}}`
+
+- Create a new system user without the home directory:
+
+`sudo useradd --system {{username}}`

pages/linux/userdel.md

@@ -1,21 +1,17 @@
 # userdel
 
 > Remove a user account or remove a user from a group.
-> Note: all commands must be executed as root.
+> See also: `users`, `useradd`, `usermod`.
 > More information: <https://manned.org/userdel>.
 
 - Remove a user:
 
-`userdel {{name}}`
-
-- Remove a user along with their home directory and mail spool:
-
-`userdel --remove {{name}}`
-
-- Remove a user from a group:
-
-`userdel {{name}} {{group}}`
+`sudo userdel {{username}}`
 
 - Remove a user in other root directory:
 
-`userdel --root {{path/to/other/root}} {{name}}`
+`sudo userdel --root {{path/to/other/root}} {{username}}`
+
+- Remove a user along with the home directory and mail spool:
+
+`sudo userdel --remove {{username}}`

pages/linux/usermod.md

@@ -1,16 +1,25 @@
 # usermod
 
 > Modifies a user account.
+> See also: `users`, `useradd`, `userdel`.
 > More information: <https://manned.org/usermod>.
 
-- Change a user's name:
+- Change a username:
 
-`usermod -l {{newname}} {{user}}`
+`sudo usermod --login {{new_username}} {{username}}`
 
-- Add user to supplementary groups (mind the whitespace):
+- Change a user id:
 
-`usermod -a -G {{group1,group2}} {{user}}`
+`sudo usermod --uid {{id}} {{username}}`
 
-- Create a new home directory for a user and move their files to it:
+- Change a user shell:
 
-`usermod -m -d {{path/to/home}} {{user}}`
+`sudo usermod --shell {{path/to/shell}} {{username}}`
+
+- Add a user to supplementary groups (mind the lack of whitespace):
+
+`sudo usermod --append --groups {{group1,group2,...}} {{username}}`
+
+- Change a user home directory:
+
+`sudo usermod --move-home --home {{path/to/new_home}} {{username}}`