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Top Forums UNIX for Dummies Questions & Answers How to get a timestamp when running nohup & from a shell? Post 302905497 by Don Cragun on Wednesday 11th of June 2014 11:52:29 PM
Old 06-12-2014
Quote:
Originally Posted by newbie_01
Hi,

BTW, I tried as below

Create the following shell scripts.

data.ksh:

Code:
#!/bin/ksh

date
timex cp -pr /copy/data /db/devdb
date

index.ksh:

Code:
#!/bin/ksh

date
timex cp -pr /copy/index /db/devdb
date

Then I created a script called x.ksh as below:

Code:
#!/bin/ksh
nohup data.ksh  & 1>data.ksh.out  2>&1
nohup index.ksh & 1>index.ksh.out 2>&1

Then I run x.ksh
I am hoping to get some output from the .out file but I got nothing

I tried running the nohup manually from the command line. Same result, i.e. blank .out files.

Or do I simply have the first & in the wrong place Smilie
As I said before; you simply have every redirection and the ampersand in the wrong place. Try:
Code:
#!/bin/ksh
nohup data.ksh 2>&1 >data.ksh.out&
nohup index.ksh 2>&1 >index.ksh.out&

First, redirect the standard error output from the script to the same file descriptor that gets standard output from the script (2>&1). Then redirect the standard output from the script to a file for that script (>filename). Then run the command in the background (&).
 

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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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