Getting Started with Linux Systems: Find the Current User Identity

Linux System Getting Started Guide: Querying the current user identity requires specific code examples

In the Linux system, it is very important to know the identity of the current user, it can help We confirm the authority we have and the scope of what we can do. This article will introduce you to how to use some simple commands to query the identity of the current user. Enter the following code example in the terminal to obtain the operation results.

Step one: View the username of the current user

To query the username of the current user, you can use the following command:

whoami

After executing the above command, the terminal will return The username of the current user is as follows:

john

Step 2: Check the user groups to which the current user belongs

To query the user groups to which the current user belongs, you can use the following command:

groups

After executing the above command, the terminal will return the user group to which the current user belongs, as shown below:

john adm cdrom sudo dip plugdev lpadmin sambashare

Step 3: View the UID and GID of the current user

To query For the UID (User Identifier) ​​and GID (Group Identifier) ​​of the current user, you can use the following command:

id

After executing the above command, the terminal will return the UID and GID of the current user, as shown below:

uid=1000(john) gid=1000(john) groups=1000(john),4(adm),​24(cdrom),27(sudo),30(dip),46(plugdev),113(lpadmin),128(sambash​are)

Through the above simple command examples, we can easily query the identity information of the current user, including user name, user group, UID, GID and other information. This information is very helpful for us to perform operations and manage file permissions in Linux systems. I hope this article will be helpful to you and help you become familiar with the basic operations of the Linux system faster.

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