sushell(8) centos man page | unix.com

SUSHELL(8)						      System Manager's Manual							SUSHELL(8)

NAME
       sushell - execute the single-user shell

SYNOPSIS
       sushell

DESCRIPTION
       sushell executes the single-user shell. By default, this is /bin/bash This can be configured via the SUSHELL environment variable.

NOTES
       sushell is an implementation detail, required for proper SELinux usage. It is not intended to be run regularly.

								   Red Hat, Inc 							SUSHELL(8)