| SH(1) | General Commands Manual | SH(1) | 
sh —
    POSIX-compliant command interpreter
| sh | [options] | 
sh is a POSIX-compliant command
    interpreter (shell). It is implemented by re-execing as either
    bash(1), dash(1), or
    zsh(1) as determined by the symbolic link located at
    /private/var/select/sh. If
    /private/var/select/sh does not exist or does not
    point to a valid shell, sh will use one of the
    supported shells.
| February 8, 2019 | Mac OS X 12 |