redirect stderr to dev/null in bash env. Post: 101311

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redirect stderr and/or stdout to /dev/null from command line

Is it possible to redirect errors at the command line when you run the script such as bash scriptname & 2>/dev/null?

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can't redirect stderr in bash

Consider: #!/bin/sh #this is a shell script in sh (bourne) grep missingfile 2>errout.txt It works from the command line, but keeps producing errors from the script. So how do I redirect in a bash shell...or bourne?

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How to redirect the import log to /dev/null?

Hi i am running oracle database import through a script and script scans the import log to see if there are any errors. Now the porblem is that when i run the script the import log appears on the screen even if i direct the output of import to /dev/null. imp "'/ as sysdba'"...

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Hello, When I run the following program: ssh 192.168.1.4 bash -l <<EOF > echo foo >/dev/stderr > EOF I get the following confusing error. bash: line 1: /dev/stderr: No such device or address Does anyone know why and how to fix it? I'm capturing stdout in a variable, but I...

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

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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:...

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[Solved] Stdout stderr to /dev/null

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redirect the audio output to /dev/null

I'm using an text-to-speech synthesis in a script, and I need to redirect it's output to /dev/null how can I do that ? And how to redirect the stream to his normal output then （sound card ) ? thankx

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...

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Redirect string from bash stderr to user stdin

Hi there, I need to execute a command in the bash. The program prints some standard (output and) error and then wants the user to choose one of several options and type the according input. I am trying to solve this issue in a bash script but also running into some circular dependency. How can I...

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aps2file

APS2FILE(1)						    BSD General Commands Manual 					       APS2FILE(1)

NAME

     aps2file -- printing to a file via apsfilter

SYNOPSIS

     aps2file [-D] [-Pqueue] [-Zoptions] [-ooutput] [input]
     aps2file [-h]

DESCRIPTION

     With aps2file you can direct the printer data generated by apsfilter(1) into an arbitrary file without the use of a spooler.

OPTIONS

     -h 	 show help screen
     -D 	 enable debug mode
     -Pqueue	 select a printer queue (different from the default one)
     -Zoptions	 use apsfilter command line options (comma-separated list)
     -ooutput	 direct data stream to output (default: stdout)
     input	 read data from input (default: stdin)

     Unlike printing with lpr(1), you can only use one input file at a time.

     Using aps2file is also the recommended way to create a debugging log of a failed printing attempt. If you include the -D flag, the apsfilter
     shell script will log every command and print it to stderr.  To save the output for inclusion into a bug report, you should therefore use a
     command of the sort
	   aps2file -D -o /dev/null [-P...] [-Z...] [input] 2> log.txt

NOTES

     aps2file only works correctly with entries in /etc/printcap that have been created by /usr/share/apsfilter/SETUP.

FILES

     /etc/printcap			 printer capability data base
     /usr/share/apsfilter/bin/apsfilter  apsfilter script

SEE ALSO

     apsfilter(1), apsfilter-bug(1), apspreview(1), apsfilterrc(5), printcap(5)

BUGS

     See apsfilter software center - http://www.apsfilter.org/ - for new versions, bugfixes and known bugs.

     Please use the new tool apsfilter-bug(1) to release bug- or problem reports. It automatically presents you a form in an editor window which
     asks you some standard questions.	If you save and quit the editor session, then this report is sent automatically via e-mail to the proper
     apsfilter mailinglist.

     If apsfilter fails to print something or prints it in a way you wouldn't expect and you want to report an apsfilter error then please save
     the debugging output of one print session using the new aps2file(1) utility by typing aps2file -D -Z options file > /dev/null 2> file.debug
     and including the debugging output in the file file.debug into the edit session of the apsfilter-bug utility, so that it is included into the
     mail to the apsfilter mailinglist.

     Please note that you need to run /bin/sh (Bourne Shell), bash or a compatible shell, so that the above mentioned output redirection works.
     Under C-shell (/bin/csh) or tcsh it would't work. If you don't know, then simply make sure you use the Bournce shell by typing /bin/sh or
     bash, then you should have no problems with redirection of stdout and stderr (> /dev/null 2> file.debug).

DOCUMENTATION

     See official apsfilter homepage
     http://www.apsfilter.org/handbook.html   Apsfilter Handbook including the Frequently Asked Questions (FAQ)

USER FORUM

     Please send questions to the official apsfilter help channel apsfilter-help@apsfilter.org.  The above section BUGS and the file
     HOWTO-BUGREPORTS tells you how to report bugs.  If you want to know how to troubleshoot your apsfilter installation, please read the manpage
     aps2file(1) and apsfilter-bug(1) as well as the Apsfilter Handbook carefully.

HISTORY

     The aps2file manpage has been written by Michael LoBin <phallobst@web.de> and first appeared in apsfilter V 7.1.0.

BSD
								   Dec 19, 2001 							       BSD

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

redirect stderr and/or stdout to /dev/null from command line

Discussion started by: knc9233

2. Shell Programming and Scripting

can't redirect stderr in bash

Discussion started by: lumix

3. Shell Programming and Scripting

How to redirect the import log to /dev/null?

Discussion started by: vinoo128

4. Shell Programming and Scripting

ssh, bash, and /dev/stderr: no such device

Discussion started by: brsett