Print the names of all logged-in users on the current host.

Operate the specified network interface when allowed

Used to modify the user's basic information

Used to delete a given user and files related to the user

New system user created

View Linux system load information

Create or update the database files necessary for the slocate command

Used to decompress archives compressed by the zip command

Delete the specified shell variable or function.

Unzip rar file command to extract files from rar compressed package

Delete function prototypes in C language source code files

The system calls the function unlink to delete the specified file.