Move background jobs to the foreground terminal to run

View disk usage and disk partitions

Display the commands in the history list or modify the specified history command and execute it.

The return status is failure.

An expression calculation tool

Manage NFS shared file system list

Set export attributes for shell variables or functions.

Convert file's tab characters to whitespace characters

Exit the current shell.

Call and execute the specified command

Start the ex editing mode of vim editor

Display or modify the configuration information of the Ethernet card