nohup(1)           UNIX System V(User Environment Utilities)           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.

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:

            sort ofile > nfile

SEE ALSO
      chmod(1), nice(1), sh(1),
      signal(2) in the Programmer's Reference Manual.

NOTES
      In the case of the following command

            nohup command1; command2

      nohup applies only to command1.  The command

            nohup (command1; command2)

      is syntactically incorrect.










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