Sponsored Content
Top Forums Shell Programming and Scripting error piping nohup to /dev/null Post 100620 by mochi on Tuesday 28th of February 2006 10:31:00 PM
Old 02-28-2006
error piping nohup to /dev/null

Hi,

I have a script as follows:

#!/bin/sh

nohup ./my_program >& /dev/null &

However, i get a "Generated or received a file descriptor number that is not valid" whenever I run it.

running the command up in prompt is ok though.

if i change the first line to #!/bin/csh
i get a then: then/endif not found.

Pardon my ignorance but I really can't solve this problem.

Can anyone kindly offer some advice?
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

>/dev/null

Maybe it's an stupid question but remeber... I'm Junior.. I use command line to run programs, and some of them gives a lot of information when, for example, you open a window or other actions. That's really bad because my terminal gets full of unwanted messages, so I use "bin file & >/dev/null"... (1 Reply)
Discussion started by: piltrafa
1 Replies

2. Solaris

What is /dev/tty /dev/null and /dev/console

Hi, Anyone can help My solaris 8 system has the following /dev/null , /dev/tty and /dev/console All permission are lrwxrwxrwx Can this be change to a non-world write ?? any impact ?? (12 Replies)
Discussion started by: civic2005
12 Replies

3. AIX

Piping to /dev/rmt0 tape ?

I am trying to find a way to do the following on an AIX 4.2 with Korn: tar cvfpdl - . | compress > /dev/rmt0 The /dev/rmt0 is the device we use when we tar directly to it. I want to compress a folder's content to tape. Our current TAR does not have compression at all. We only have... (5 Replies)
Discussion started by: Browser_ice
5 Replies

4. Shell Programming and Scripting

Error output of cat to /dev/null

Hello, I'm trying to send the error output of a 'cat' operation to /dev/null like this: cat /dirA/dirB/temp*.log > /dirA/dirB/final.log 2>/dev/null This works perfectly in a terminal, but not when placed in a script. If there are no files matching temp*.log the script outputs an error... (7 Replies)
Discussion started by: Nils88
7 Replies

5. UNIX for Dummies Questions & Answers

/dev/null 2>&1 Versus /dev/null 2>1

How are these two different? They both prevent output and error from being displayed. I don't see the use of the "&" echo "hello" > /dev/null 2>&1 echo "hello" > /dev/null 2>1 (3 Replies)
Discussion started by: glev2005
3 Replies

6. HP-UX

/dev/Null error

Hi Guru's, I am trying to test the network speed or load by this command. but getting error " Not Connected ". Could you guys please help. ftp> put "|dd if=/dev/zero bs=8k count=1000000" /dev/null Not connected. Please use code tags! (9 Replies)
Discussion started by: sris.sun
9 Replies

7. Shell Programming and Scripting

Redirecting standard out to /dev/null goes to file "/dev/null" instead

I apologize if this question has been answered else where or is too elementary. I ran across a KSH script (long unimportant story) that does this: if ; then CAS_SRC_LOG="/var/log/cas_src.log 2>&1" else CAS_SRC_LOG="/dev/null 2>&1" fithen does this: /usr/bin/echo "heartbeat:... (5 Replies)
Discussion started by: jbmorrisonjr
5 Replies

8. UNIX for Dummies Questions & Answers

Eliminate error message (/dev/null)?

I am trying to eliminate an error message from a script. This is the error message: find: stat() error /usr/openv/netbackup/db/images/KUMAX: No such file or directory if ]; then runthiscommand=`su nxadm -c "ssh -t $new3 exec /bin/sh -s">/tmp/filew3 2>/tmp/error.txt<<EOF ... (1 Reply)
Discussion started by: newbie2010
1 Replies

9. UNIX for Dummies Questions & Answers

Redirect Standard Error to /dev/null is not working.

Hello. When I run a .ksh that contains the command below, and there is no file available in the source location the "FILE_NAME_*.CSV not found" error is still being displayed. FILEN=$(ssh ${SOURCE_SERV} "cd ${SOURCE_LOCATION} ;ls ${FILES}") 2> /dev/null. This is interfering with the rest... (4 Replies)
Discussion started by: jimbojames
4 Replies

10. Shell Programming and Scripting

2>/dev/null

Friends have the following problem a search may not find anything which would correct example: ls -ltr *prueba.txt | nawk '{ print $9 }' > Procesar.dat 2>/dev/null When he finds nothing gives me the following error ls: prueba.txt: No such file or directory because 2> / dev / null... (4 Replies)
Discussion started by: tricampeon81
4 Replies
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. AUTHOR
Written by Jim Meyering. REPORTING BUGS
Report nohup bugs to bug-coreutils@gnu.org GNU coreutils home page: <http://www.gnu.org/software/coreutils/> General help using GNU software: <http://www.gnu.org/gethelp/> Report nohup translation bugs to <http://translationproject.org/team/> COPYRIGHT
Copyright (C) 2010 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 8.5 February 2011 NOHUP(1)
All times are GMT -4. The time now is 05:10 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy