SU

root@t92:/ # su -help
Usage: su [options] [--] [-] [LOGIN] [--] [args...]


Options:
  --daemon                      start the su daemon agent
  -c, --command COMMAND         pass COMMAND to the invoked shell
  -h, --help                    display this help message and exit
  -, -l, --login                pretend the shell to be a login shell
  -m, -p,
  --preserve-environment        do not change environment variables
  -s, --shell SHELL             use SHELL instead of the default /system/bin/sh
  -u                            display the multiuser mode and exit
  -v, --version                 display version number and exit
  -V                            display version code and exit,
                                this is used almost exclusively by Superuser.apk