bash-builtins - bash built-in commands, see bash
bash defines the following built-in commands: :, ., [, alias, bg, bind, break,
builtin, case, cd, command, compgen, complete, continue, declare, dirs,
disown, echo, enable, eval, exec, exit, export, fc, fg, getopts, hash, help,
history, if, jobs, kill, let, local, logout, popd, printf, pushd, pwd, read,
readonly, return, set, shift, shopt, source, suspend, test, times, trap, type,
typeset, ulimit, umask, unalias, unset, until, wait, while.
See the file man1/bash.1.