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NOHUP(1)                  BSD General Commands Manual                 NOHUP(1)

NAME
     nohup -- invoke a command immune to hangups

SYNOPSIS
     nohup utility [arg ...]

DESCRIPTION
     The nohup command allows the specified utility to be protected from
     termination if the user should become logged out (for example, due to a
     modem line or TCP/IP connection being dropped).  To do this, nohup sets
     the SIGHUP signal(3) ("terminal line hangup") to be ignored, then
     executes utility along with any arguments.

     If the standard output is a terminal, 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.  If
     the output file nohup.out cannot be created in the current directory,
     nohup attempts to create the file in the user's home directory.  If the
     file nohup.out cannot be created, either in the current directory or the
     user's home directory, nohup will exit without invoking utility, with an
     exit value as described below.

ENVIRONMENT
     The following variable is used by nohup:

     HOME  User's home directory.

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
     signal(3)

STANDARDS
     The nohup command is expected to be IEEE Std 1003.2 ("POSIX.2")
     compatible.

BSD                              July 15, 2005                             BSD
NAME | SYNOPSIS | DESCRIPTION | ENVIRONMENT | EXIT STATUS | SEE ALSO | STANDARDS