NOHUP(1)            RISC/os Reference Manual             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 pipe-
     lines 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.








                        Printed 11/19/92                   Page 1