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--- commands [2025/01/12 10:14] – 1211112319
+++ commands [2025/01/17 16:54] (current) – 1211112319
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 ====== How to create and delete users ======
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 **//EXTRA//**\\
  Add user //aidel// to sudo group\\
+  * use **//sudo adduser username sudo//**
 {{:whatsapp_image_2025-01-12_at_13.28.50_2303cca1.jpg?400|}}
@@ Line 78: / Line 82: @@
 {{:whatsapp_image_2025-01-12_at_13.19.59_ab381a49.jpg?400|}}
+  * Delete User and Home Directory
+**-r**: Recursively removes the user’s home directory and mail spool.
+{{:screenshot_2025-01-12_191951.png?400|}}
+  *  Force Deletion
+**-f**: Forces the removal of the user account, kills processes, and deletes files.
+{{:screenshot_2025-01-12_192405.png?400|}}
+  * Lock User Before Deleting
+Locks the user's account before deletion to ensure no one logs in during the process.
+**//EXTRA//**
+ {{:screenshot_2025-01-12_193134.png?400|}}
+====== User Management ======
+User management in Linux is a critical aspect of system administration. It involves creating, modifying, and managing user accounts and groups to ensure proper access control, system security, and resource allocation. Each user is assigned a unique identity, along with permissions and restrictions.
+  * **Change user password**
+  - login to any sudoer group user or root
+  - Use **//sudo passwd username//** to change user password
+  - Enter new password then you will be ask to retype you new password
+  - Password change
+  -
+{{:screenshot_2025-01-16_144702.png?400|}}
+  * **Manage Password aging and expiration**
+The **sudo chage** command is used in Linux to manage password aging and expiration policies for a user. It allows administrators to define and control how long a user's password remains valid, enforce password expiration, and specify warnings before password expiration.
+  - //**sudo chage [option] username**//
+  * **sudo chage -l username**
+Display the current password aging information
+{{:screenshot_2025-01-16_162659.png?400|}}
+  * **sudo chage -E  2025-12-31 username**
+Set the account expiration date. The account will be disabled after this date.
+To set account expiration to never use **sudo change -E -1 username**
+{{:date.png?400|}}
+  * **sudo chage -W 7 username**
+The user will receive a warning 7 days before the password expires.
+{{:date.png?400|}}