nohup(1)                   DG/UX 4.30                    nohup(1)



     NAME
          nohup - run a command immune to hangups and quits

     SYNOPSIS
          nohup command [ arguments ]

     DESCRIPTION
          Nohup executes command with hangups and quits ignored.  If
          output is not re-directed by the user, both standard output
          and standard error are sent to nohup.out.  If nohup.out is
          not writable in the current directory, output is redirected
          to $HOME/nohup.out.  If standard output is redirected but
          standard error is not, standard error is automatically
          redirected to the same file as output.

     EXAMPLE
          It is frequently desirable to apply nohup to pipelines or
          lists of commands.  This can be done only by placing
          pipelines and command lists in a single file, called a shell
          procedure.  One can then issue:

               nohup sh file

          and the nohup applies to everything in file.  If the shell
          procedure file is to be executed often, then the need to
          type sh can be eliminated by giving file execute permission.
          Add an ampersand and the contents of file are run in the
          background with interrupts also ignored (see sh(1)):

               nohup file &

          An example of what the contents of file could be is:

               tbl ofile | eqn | nroff > nfile

     SEE ALSO
          chmod(1), csh(1), nice(1), sh(1).
          signal(2) in the Programmer's Reference for the DG/UX System

     WARNINGS
              $ nohup command1; command2

          nohup applies only to command1

              $ nohup (command1; command2)

          is syntactically incorrect.

          Be careful of where standard error is redirected.  The
          following command may put error messages on tape, making it
          unreadable:




     Licensed material--property of copyright holder(s)         Page 1

     nohup(1)                   DG/UX 4.30                    nohup(1)



              $ nohup cpio -o <list >/dev/rmt/1m&

          while

              $ nohup cpio -o <list >/dev/rmt/1m 2>errors&

          puts the error messages into file errors.
















































     Licensed material--property of copyright holder(s)         Page 2