command (Unix)

The command command in Unix and Unix-like operating systems is a utility to execute a command. It is specified in the POSIX standard. It is present in Unix shells as a shell builtin function. The argument(s) passed is a command with its arguments. The passed command is run with the normal shell function lookup suppressed.

command

Operating system	Unix and Unix-like
Type	Command

Examples

In the following, the ls command is run without any shell functions or aliases that may exist with the same name:

$ command ls

See also

• List of Unix commands

External links

• command – Shell and Utilities Reference, The Single UNIX Specification, Version 4 from The Open Group