chroot(1M)                 DG/UX 4.31                  chroot(1M)



     NAME
          chroot - change root directory for a command

     SYNOPSIS
          /etc/chroot newroot command

     DESCRIPTION
          Chroot executes command relative to newroot. 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 the 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).

     NOTE
          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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