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Top Forums UNIX for Dummies Questions & Answers Clarification regarding nohup.out Post 302332611 by frozentin on Thursday 9th of July 2009 03:12:31 PM
Old 07-09-2009
Did you already read the manpage for nohup?

Here's the link to Solaris 10 manpage for nohup:http://docs.sun.com/app/docs/doc/816...nohup-1?a=view

You may want to re-read this:
Quote:
If nohup.out is not writable in the current directory, output is redirected to $HOME/nohup.out. If a file is created, the file has read and write permission (600. See chmod(1). If the standard error is a terminal, it is redirected to the standard output, otherwise it is not redirected. The priority of the process run by nohup is not altered.
Also, from the same man page:
Quote:
The C-shell (csh(1)) has a built-in command nohup that provides immunity from SIGHUP, but does not redirect output to nohup.out. Commands executed with `&' are automatically immune to HUP signals while in the background

Last edited by frozentin; 07-09-2009 at 04:19 PM.. Reason: added link + info about csh nohup
 

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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 ter- minal, 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 identical 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. DIAGNOSTICS
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'') compatible. BUGS
Two or more instances of nohup can append to the same file, which makes for a confusing output. BSD
July 19, 2001 BSD
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