chroot

Run command or interactive shell with special root directory

Location

$ whereis -b chroot
chroot: /usr/sbin/chroot

Help

$ chroot --help
Usage: chroot [OPTION] NEWROOT [COMMAND [ARG]...]
  or:  chroot OPTION
Run COMMAND with root directory set to NEWROOT.

  --groups=G_LIST        specify supplementary groups as g1,g2,..,gN
  --userspec=USER:GROUP  specify user and group (ID or name) to use
  --skip-chdir           do not change working directory to '/'
      --help     display this help and exit
      --version  output version information and exit

If no command is given, run '"$SHELL" -i' (default: '/bin/sh -i').

GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Full documentation at: <http://www.gnu.org/software/coreutils/chroot>
or available locally via: info '(coreutils) chroot invocation'

file