System User's Guide: Operating System and Devices

List of Korn Shell or POSIX Shell Built-in Commands

: (colon)	Expands only arguments.
. (dot)	Reads a specified file and then executes the commands.
break	Exits from the enclosing for, while, until, or select loop, if one exists.
continue	Resumes the next iteration of the enclosing for, while, until, or select loop.
eval	Reads the arguments as input to the shell and executes the resulting command or commands.
exec	Executes the command specified by the Argument parameter, instead of this shell, without creating a new process.
exit	Exits the shell whose exit status is specified by the n parameter.
export	Marks names for automatic export to the environment of subsequently executed commands.
newgrp	Equivalent to the exec /usr/bin/newgrp [Group ...] command.
readonly	Marks the specified names read-only.
return	Causes a shell to return to the invoking script.
set	Unless options or arguments are specified, writes the names and values of all shell variables in the collation sequence of the current locale.
shift	Renames positional parameters.
times	Prints the accumulated user and system times for both the shell and the processes run from the shell.
trap	Runs a specified command when the shell receives a specified signal or signals.
typeset	Sets attributes and values for shell parameters.
unset	Unsets the values and attributes of the specified parameters.

alias	Prints a list of aliases to standard output.
bg	Puts specified jobs in the background.
cd	Changes the current directory to the specified directory or substitutes the current string with the specified string.
echo	Writes character strings to standard output.
fc	Selects a range of commands from the last HISTSIZE variable command typed at the terminal. Re-executes the specified command after old-to-new substitution is performed.
fg	Brings the specified job to the foreground.
getopts	Checks the Argument parameter for legal options.
jobs	Lists information for the specified jobs.
kill	Sends the TERM (terminate) signal to specified jobs or processes.
let	Evaluates specified arithmetic expressions.
print	Prints shell output.
pwd	Equivalent to the print -r -$PWD command.
read	Takes shell input.
ulimit	Sets or displays user process resource limits as defined in the /etc/security/limits file.
umask	Determines file permissions.
unalias	Removes the parameters in the list of names from the alias list.
wait	Waits for the specified job and terminates.
whence	Indicates how each specified name would be interpreted if used as a command name.