010-160 System Security & User Permissions

Question 1

What is the purpose of the 'chmod' command in Linux?

Accepted Answer

Change file permissions

Answer

The `chmod` command (change mode) is used in Linux to modify the permissions of files and directories. These permissions dictate who can read, write, or execute a file (owner, group, or others). Properly using `chmod` is crucial for securing files, controlling access, and ensuring the correct execution of programs within the Linux environment.

Question 2

Which command is used to display the current user in Linux?

Accepted Answer

whoami

Answer

The `whoami` command in Linux is used to display the effective username of the current user. It provides a quick and straightforward way to confirm which user account is currently logged in or executing a command. This is particularly useful in terminal sessions or scripts to ensure operations are performed under the correct user context.

(010-160) LPI Linux Essentials Practice Test

(010-160) LPI Linux Essentials Practice Test

010-160 System Security & User Permissions