help
displays information about shell builtin commands
TLDR
Get help for builtin
$ help [cd]
List all builtins$ help
Short description$ help -d [command]
Man page format$ help -m [command]
Show usage synopsis$ help -s [command]
SYNOPSIS
help [options] [pattern]
DESCRIPTION
help displays information about shell builtin commands. It's a Bash builtin that provides documentation for commands built into the shell.The command shows usage, options, and descriptions for Bash builtins. It's useful for learning about commands like cd, export, and source.
PARAMETERS
PATTERN
Shell builtin name or pattern.-d
Short description only.-m
Man page format.-s
Usage synopsis only.
CAVEATS
Bash specific. Only for builtins, not external commands. Use man for external commands.
HISTORY
help has been part of Bash since early versions, providing built-in documentation for shell commands.
