nohup(1)               (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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