Sponsored Content
Full Discussion: how to supress the trace
Top Forums Shell Programming and Scripting how to supress the trace Post 302325038 by aoussenko on Friday 12th of June 2009 01:42:38 PM
Old 06-12-2009
how to supress the trace

Hi
I am working in ksh and getting the trace after trying to remove the file which in some cases does not exist:

$ my_script
loadfirm.dta.master: No such file or directory

The code inside the script which produces this trace is the following:

[[ -e ${FILE}.master ]] || rm ${FILE}.master >> /dev/null

for some reason " >> /dev/null " does not do the trick...

Is there any other way to supress the commnand output? Thanks a lot -A
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Supress screen output...

I need to suppress the output to the screen. I am appending to a file so do not need the output on the screen in the CLI environment. eg. cat $HOME/somefile >> $HOME/anotherfile I am doing this a number of times with SQL output files so I can look at the finished file not on the screen in the... (3 Replies)
Discussion started by: jagannatha
3 Replies

2. UNIX for Advanced & Expert Users

Supress special chars in vi

Hi, One of our application is producing log files. But if we open the log file in vi or less or view mode, it shows all the special characters in it. The 'cat' shows correctly but it shows only last page. If I do 'cat' <file_name> | more, then again it shows special characters. ... (1 Reply)
Discussion started by: divakarp
1 Replies

3. Shell Programming and Scripting

How do I supress certian output with find?

I am using this command find . -type f -mmin "+$t" > holder Unfortunatley that is also printing files that begin with a period. Such as .bash_history. What can I do to supress files that begin with a period? (1 Reply)
Discussion started by: chrchcol
1 Replies

4. UNIX for Advanced & Expert Users

Supress error message

Hi All this is a simple script #! /bin/bash FileCnt=`ls -lrt $DIR/* | wc -l` echo $FileCnt how could i escape the error msg if there are no files in $DIR ls: /home/sayantan/test/files/cnt/*: No such file or directory 0 Looking forward for a quick reply Regards, Newbie (2 Replies)
Discussion started by: newbie07
2 Replies

5. Shell Programming and Scripting

supress error messages

Hi I have a script which connects to oracle using sqlplus if ! check_sqlplus "$ORACLE_SID" ; then echo "Unable to use sqlplus for sid $ORACLE_SID" return 1 else echo "attempting to connect to database" echo $ORACLE_HOME echo $ORACLE_SID echo "Status before entering... (2 Replies)
Discussion started by: xiamin
2 Replies

6. Shell Programming and Scripting

AWk - supress warning

Hi, I am trying to run a script using awk and sed a few times. The script itself seems to work fine but in a final awk statement it throws up a warning: awk: warning: escape sequence `\.' treated as plain `.' script: ... (3 Replies)
Discussion started by: HugoDarley
3 Replies

7. Shell Programming and Scripting

To Supress *

Hi Team , I want supress the meaning of * while passing it as parameter. I have file which contains file format and destination directory. let say abc* |/home/xyz I had function which will read these values and pass it to another function. Code looks like below func1 () {... (6 Replies)
Discussion started by: gvkumar25
6 Replies

8. Shell Programming and Scripting

Supress text

Hi, I was looking for a simple code to suppress the text between 2 characters. the characters can be of same kind like "*" or "(" and ")". The number of characters are not consistent and could vary. How can I suppress the text between 2 characters? Example: Input : Hello (Within Bracket)... (8 Replies)
Discussion started by: ahmedwaseem2000
8 Replies

9. Shell Programming and Scripting

Supress the psswd from ps in ksh/bash

I am running the ETL job to passing the database username,pssswd positional arguments to shell script (bash) and how can we suppress/hide the password from ps command. (2 Replies)
Discussion started by: pimmit22043
2 Replies

10. Shell Programming and Scripting

Supress java error output to shell

Hello, I know this isn't exactly a shell script question but I'm not sure where else to post it. I am running a java program out of a shell script. There are times when I get an error like, "java.lang.ArrayIndexOutOfBoundsException: 22 at blah, blah at blah, blah ... (3 Replies)
Discussion started by: LMHmedchem
3 Replies
TRACE-CMD-STOP(1)														 TRACE-CMD-STOP(1)

NAME
trace-cmd-stop - stop the Ftrace Linux kernel tracer from writing to the ring buffer. SYNOPSIS
trace-cmd stop DESCRIPTION
The trace-cmd(1) stop is a complement to trace-cmd-start(1). This will disable Ftrace from writing to the ring buffer. This does not stop the overhead that the tracing may incur. Only the updating of the ring buffer is disabled, the Ftrace tracing may still be inducing overhead. After stopping the trace, the trace-cmd-extract(1) may strip out the data from the ring buffer and create a trace.dat file. The Ftrace pseudo file system may also be examined. To disable the tracing completely to remove the overhead it causes, use trace-cmd-reset(1). But after a reset is performed, the data that has been recorded is lost. SEE ALSO
trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1) AUTHOR
Written by Steven Rostedt, <rostedt@goodmis.org[1]> RESOURCES
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING
Copyright (C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). NOTES
1. rostedt@goodmis.org mailto:rostedt@goodmis.org 06/11/2014 TRACE-CMD-STOP(1)
All times are GMT -4. The time now is 06:08 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy