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nohup(1)                  BSD General Commands Manual                 nohup(1)


NAME

     nohup -- invoke a utility immune to hangups


SYNOPSIS

     nohup [--] utility [arguments]


DESCRIPTION

     The nohup utility invokes utility with its arguments and at this time
     sets the signal SIGHUP to be ignored.  If the standard output is a termi-
     nal, the standard output is appended to the file nohup.out in the current
     directory.  If standard error is a terminal, it is directed to the same
     place as the standard output.

     Some shells may provide a builtin nohup command which is similar or iden-
     tical to this utility.  Consult the builtin(1) manual page.


ENVIRONMENT

     The following variables are utilized by nohup:

     HOME  If the output file nohup.out cannot be created in the current
           directory, the nohup utility uses the directory named by HOME to
           create the file.

     PATH  Used to locate the requested utility if the name contains no `/'
           characters.


EXIT STATUS

     The nohup utility exits with one of the following values:

     126     The utility was found, but could not be invoked.

     127     The utility could not be found or an error occurred in nohup.

     Otherwise, the exit status of nohup will be that of utility.


SEE ALSO

     builtin(1), csh(1), signal(3)


STANDARDS

     The nohup utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compat-
     ible.


BUGS

     Two or more instances of nohup can append to the same file, which makes
     for a confusing output.

BSD                              July 19, 2001                             BSD

Mac OS X 10.6 - Generated Thu Sep 17 20:08:12 CDT 2009
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