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Top Forums Shell Programming and Scripting Run Script With nohup Command On A Different Server Post 302318795 by colemar on Friday 22nd of May 2009 09:05:23 AM
Old 05-22-2009
Quote:
Originally Posted by King Nothing
Ideally what I would want is for the perl script to run there and then.
Please clarify, what would you like to do?

Quote:
Originally Posted by King Nothing
You said that I need to get a signal from nohup in order to understand that the script is done with its execution. But how am I supposed to do so?
Not from nohup, you don't want to use nohup nor & when waiting for the perl process to end.
The perl script should output something on the standard output when its job is done; if it is completely silent, at least the remote shell should output a prompt. If you were to telnet manually you would see that output on your terminal screen. Since your shell script is using telnet, not you, it is your script that has to read from the two-way pipe (|&) and decide if and when the perl script is finished.

Quote:
Originally Posted by King Nothing
I also removed the & at the end so that it runs in the foreground only. But I could not see any file being created for nohup.out or any file that the called perl script should have created ...
Of course the file nohup.out is created on the remote machine, and more precisely in the current directory for the nohup process, and that directory happens to be the home dir of $USERID (since I see no cd commands).
 

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NOHUP(1)							   User Commands							  NOHUP(1)

NAME
nohup - run a command immune to hangups, with output to a non-tty SYNOPSIS
nohup COMMAND [ARG]... nohup OPTION DESCRIPTION
Run COMMAND, ignoring hangup signals. --help display this help and exit --version output version information and exit If standard input is a terminal, redirect it from /dev/null. If standard output is a terminal, append output to 'nohup.out' if possible, '$HOME/nohup.out' otherwise. If standard error is a terminal, redirect it to standard output. To save output to FILE, use 'nohup COMMAND > FILE'. NOTE: your shell may have its own version of nohup, which usually supersedes the version described here. Please refer to your shell's doc- umentation for details about the options it supports. GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report nohup translation bugs to <http://translationproject.org/team/> AUTHOR
Written by Jim Meyering. COPYRIGHT
Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
The full documentation for nohup is maintained as a Texinfo manual. If the info and nohup programs are properly installed at your site, the command info coreutils 'nohup invocation' should give you access to the complete manual. GNU coreutils 8.22 June 2014 NOHUP(1)
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