| NOHUP(1) | General Commands Manual | NOHUP(1) |
nohup — invoke a
command immune to hangups
nohup |
utility [arg ...] |
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.
HOMEThe nohup utility exits with one of the
following values:
nohup.Otherwise, the exit status of nohup shall
be that of utility.
The nohup utility is compliant with the
IEEE Std 1003.1-2008 (“POSIX.1”)
specification.
nohup also exists as a built-in to
csh(1), though with a different syntax.
| September 29, 2010 | OpenBSD-current |