useradd command
LINUX-Frequently used commands
| useradd command Adding a new user. |
| Ｓyntax |
| useradd [Option] [Path] |
| The useradd command is used to add a new user. When a user is added, a directory with the specified user name is created under the /home directory, and this directory becomes the home directory for the added user. This information is stored in the /etc/passwd file, and information about groups is stored in the /etc/group file. The command is executed with the user name as an argument. |
| Frequently used options |
| -c <comment> Enter a comment for a new user -d <directory> Specify your home directory explicitly -e <yyyymmdd> Specify the expiry date of the user account (date) -g <group> Specify the group to which you belong. |
| Example: Adding a user. |
| $ su - ← Become root with the su command Password: Enter root password # useradd koro ← Add user "koro". |
| Example: Adding a user by specifying their home directory. |
| $ su - ← Become root with the su command Password: Enter root password # useradd -d /home/buy koro ← Add user 'koro' to your home directory '/home/buy' |
| Example: Add a new user with an expiry date. |
| $ su - ← Become root with the su command Password: Enter root password # useradd -e 20211231 koro ← Addition of the user "koro" with a deadline until 31 December 2021 |