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How To Suppress Error In Shell Script

Related 4How to redirect error to a file?11Does `Segmentation fault` message come under STDERR?2Different error messages when using different strings in terminal0How do I enable &>/dev/null by default for all sh/bash Join them; it only takes a minute: Sign up suppress shell script error messages up vote 12 down vote favorite 1 In my shell script I got these lines: rm tempfl.txt Weirder context inside How to replace a word inside a .DOCX file using Linux command line? Piping STDERR to /dev/null is standard and will get rid of any visual indication of errors, but checking for a non zero return status will let you know if there was

Note that registered members see fewer ads, and ContentLink is completely disabled once you log in. But if we escape the slash we get: $ printf 'foo\\nbar' foo\nbar So, you can get rid of it either by escaping the backslash: touch ~/deleted/"$(echo "directory_$(readlink -f -- "$1")"|tr '/' Browse other questions tagged shell wildcards cp or ask your own question. Are leet passwords easily crackable? http://stackoverflow.com/questions/15678796/suppress-shell-script-error-messages

Adv Reply January 2nd, 2010 #2 shylent View Profile View Forum Posts Private Message 5 Cups of Ubuntu Join Date Aug 2009 Beans 27 Re: suppress stderr in a bash Or using a different name than cp. –HalosGhost Mar 24 '15 at 1:50 I agree with you but this is a solution for someone who doesn't want to see Hmm.

Is foreign stock considered more risky than local stock and why? Are you new to LinuxQuestions.org? For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. LinuxQuestions.org > Forums > Non-*NIX Forums > Programming bash scripting - suppress error messages?

It's these kinds of errors I'm having a hard time passing out to an external file. Beware. They will be hell to parse and deal with later on. UNIX is a registered trademark of The Open Group.

Or exec 2>&1 which sets stderr to be the same as stdout, and is likely to be wrong. if you want your stderr output back on any place insert: exec 2>/dev/tty ciao Last edited by rnerwein; January 2nd, 2010 at 08:54 PM. Remove advertisements Sponsored Links blowtorch View Public Profile Find all posts by blowtorch #3 01-16-2007 helper2007 Registered User Join Date: Jan 2007 Last Activity: 16 January 2007, 10:43 Subscribe to Xmodulo Do you want to receive Linux FAQs, detailed tutorials and tips published at Xmodulo?

asked 1 year ago viewed 6724 times active 5 months ago Blog Stack Overflow Podcast #91 - Can You Stump Nick Craver? Now the rubber meets the road as I apply this script to a folder with over 2500 files inside it. currently i see the following options: -supplement each single one of those commands with "2>/dev/null" <--doing that currently -tell the people who use the script to invoke it with "2>/dev/null" -build When he is otherwise free, he likes to watch movies and shop for the coolest gadgets.

Hot Network Questions Java String/Char charAt() Comparison Op-amp theory vs practice: what have I done wrong Is "dum" missing in the sentence "Mi atendis pli ol horo"? more hot questions question feed lang-sh about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Incorrect Query Results on Opportunity? denmanjc replied Jul 13, 2004 ret=3D`ls -1 ZZZ* 2>/dev/null` ...jcd...

Browse other questions tagged bash shell-script stderr or ask your own question. Why is a lottery conducted for sick patients to be cured? Unix & Linux Stack Exchange works best with JavaScript enabled Unix & Linux Forums > Top Forums > Shell Programming and Scripting Member Name Remember Me? Confused riddle and poem?

It occurred to me that perhaps a non-ASCII file type, similar to the .exv files generated for field and tag data, might work in this instance, but as I write this Not the answer you're looking for? Word with the largest number of different phonetic vowel sounds Why aren't sessions exclusive to an IP?

I know I can do it on the command line, as in: $ ./test1.sh 2> /dev/null ...

Ubuntu Logo, Ubuntu and Canonical Canonical Ltd. PCMag Digital Group AdChoices unused Share your knowledge at the LQ Wiki. Maybe it's because I'm trying this all in Cygwin where the BASH is pre-4.0, but I don't think so, since even the methods from that time in the course of BASH's Support Xmodulo Did you find this tutorial helpful?

Search Forums Show Threads Show Posts Tag Search Advanced Search Unanswered Threads Find All Thanked Posts Go to Page... unix and linux commands - unix shell scripting How to Chebyshev Rotation How to get the same Emacs environment on a different computer? They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own. Otherwise, let the users see the errors.

asked 2 years ago viewed 6655 times active 2 years ago Blog Stack Overflow Podcast #91 - Can You Stump Nick Craver? redirect the conditional block. The problem I've been having, specifically, is with -M"add..." commands in a script I just started working on. And as I found out, too, that the ampersand is crucial.

Top This thread has been closed due to inactivity. Solve problems - It's Free Create your account in seconds E-mail address is taken If this is your account,sign in here Email address Username Between 5 and 30 characters. The most sensible thing to do would be to not run cp at all when the wildcard doesn't match any file, rather than run cp and hide the error message. How to know if a meal was cooked with or contains alcohol?

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So I'm picking the brains of the more-experienced coders, scripters and such folk in the exiv2 user community for advice. more hot questions question feed lang-sh about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation DistroUbuntu 9.10 Karmic Koala Re: suppress stderr in a bash script Originally Posted by John Bean ... share|improve this answer answered Mar 28 '13 at 9:59 kamituel 18.2k23763 1 rm -f should be used carefully. –hetepeperfan Mar 28 '13 at 10:01 good point, thanks –kamituel

you even don't need a conditional; just a block, i think Absolutely; a block is a block is a block...