chroot(1m)                 DG/UX 4.30                  chroot(1m)



     NAME
          chroot - change root directory for a command

     SYNOPSIS
          /etc/chroot newroot command argument

     DESCRIPTION
          Chroot executes command relative to newroot. Argument is an
          argument to command.  After executing chroot, the initial
          slash (/) in subsequent pathnames is changed to the new root
          directory you specify.  Newroot becomes the initial working
          directory.

          The new root is always relative to the current root.  If a
          chroot is currently in effect (for example, a sh or csh
          command), newroot is relative to the current root of the
          running process, not the original root (/).

          Changing the root for command does not change the root for
          chroot.  Thus, I/O redirection is relative to the old root
          directory.

          Only a superuser can use the chroot command.

     EXAMPLES
               /etc/chroot /usr/alex/test /grep pattern /file1 > grep.out

               /usr/alex/test/grep pattern /usr/alex/test/file1 > grep.out

          These two lines are equivalent.  Note that I/O redirection
          is relative to the original root, not the new one.

     SEE ALSO
          chdir(2), chroot(2).

     BUGS
          Be careful if you wish to reference special files in the new
          root file system.  Unless the new root is /dev or you have
          copies of the /dev files within the range of the new root,
          these special files will be inaccessible.















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