The help built-in prints usage of built-ins.
Syntax
-
help [built-in…]
Description
The help built-in prints a description of built-ins.
Operands
- built-ins
-
Names of built-ins.
Exit status
The exit status of the help built-in is zero unless there is any error.
Notes
The help built-in is a semi-special built-in. In the POSIX standard, it is defined as a command with unspecified behavior.
Many built-ins of yash accept the --help
option that prints the same
description.