Id command in Linux

id command in Linux is used to find out user and group names and numeric ID's (UID or group ID) of the current user or any other user in the server. This command is useful to find out the following information as listed below: User name and real user id. Find out the specific Users UID.

1. How do I find my Linux ID?
2. What is User ID Linux?
3. How does ID command work?
4. Which command displays the ID of the user?
5. What is my Linux terminal Username?
6. How do I find my LDAP Linux?
7. What is a user ID example?
8. How do I find my user ID in Linux?
9. What is GID number?
10. What is an ID command?
11. How do I find my UID?

How do I find my Linux ID?

4 Answers

1. Using the id command you can get the real and effective user and group IDs. id -u <username> If no username is supplied to id , it will default to the current user.
2. Using the enviroment variable. echo $UID.

What is User ID Linux?

A UID (user identifier) is a number assigned by Linux to each user on the system. This number is used to identify the user to the system and to determine which system resources the user can access. UID 0 (zero) is reserved for the root.

How does ID command work?

Using the id Command

If the username is omitted, the id command displays information about the currently logged-in user. When invoked without any option, id prints the real user ID ( uid ), the user's real primary group ID ( gid ), and real IDs of the supplemental groups ( groups ) the user belongs to.

Which command displays the ID of the user?

id command is command which can print real and effective User ID (UID) and Group ID (GID). An UID is a single identity for a user.

What is my Linux terminal Username?

To quickly reveal the name of the logged in user from the GNOME desktop used on Ubuntu and many other Linux distributions, click the system menu in the top-right corner of your screen. The bottom entry in the drop-down menu is the user name.

How do I find my LDAP Linux?

Search LDAP using ldapsearch

1. The easiest way to search LDAP is to use ldapsearch with the “-x” option for simple authentication and specify the search base with “-b”.
2. To search LDAP using the admin account, you have to execute the “ldapsearch” query with the “-D” option for the bind DN and the “-W” in order to be prompted for the password.

What is a user ID example?

The user name, or username, by which a person is identified to a computer system or network. ... In the e-mail address [email protected], for example, ray is the username. User ID is synonymous with username. See also password.

How do I find my user ID in Linux?

11 Ways to Find User Account Info and Login Details in Linux

1. id Command. id is a simple command line utility for displaying a real and effective user and group IDs as follows. ...
2. groups Command. groups command is used to show all the groups a user belongs to like this. ...
3. finger Command. ...
4. getent Command. ...
5. grep Command. ...
6. lslogins Command. ...
7. users Command. ...
8. who Command.

What is GID number?

A group identifier, often abbreviated to GID, is a numeric value used to represent a specific group. The range of values for a GID varies amongst different systems; at the very least, a GID can be between 0 and 32,767, with one restriction: the login group for the superuser must have GID 0.

What is an ID command?

id command in Linux is used to find out user and group names and numeric ID's (UID or group ID) of the current user or any other user in the server. This command is useful to find out the following information as listed below: User name and real user id. ... Display security context of the current user.

How do I find my UID?

Where to find stored UID? You can find the UID in the /etc/passwd file, which is the file that also stores all users registered in the system. To view the /etc/passwd file contents, run the cat command on the file, as shown below on the terminal.