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Bash Script Hide Error Output

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one can use it as an alternate of /dev/null 2>&1 Silent grep: grep -q "string" match the string silently or quietly without anything to standard output. However |& is the only way to do this for pipes. –John Nov 3 '11 at 11:38 @John No, the portable way for pipes is a 2>&1 | b You can do the reverse, redirect standard output to standard error using >&2 and then redirect standard error to a file with 2> file. –Hubert Kario Nov 27 '12 at 11:39 Why does Windows show "This device can perform faster" notification if I connect it clumsily? this contact form

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 Why don't most major game engines use gifs for animated textures? It actually creates a file named - and &> is a non-portable bourne shell extension. –PhilT Aug 6 '14 at 20:35 The portable equivalent echo moo 1>&- produces an Any advice? –Piero Oct 30 '14 at 17:11 add a comment| up vote 6 down vote Try : $(yourcommand) : is short for "do nothing". $() is just your command.

Bash Script Redirect Error Output

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 Bash treats this as a group of commands, aggregating the output file descriptors so you can redirect all at once. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed

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Remove advertisements Sponsored Links totziens View Public Profile Find all posts by totziens #2 05-02-2008 grial El UNIX es como un toro Join Date: Jun 2006 Last Bash Script Suppress Error Output Symbolic comparison of recursive functions Why did companions have such high social standing? Related 2882Can a Bash script tell which directory it is stored in?669How do I iterate over a range of numbers defined by variables in Bash?721How do I prompt for input in Results 1 to 7 of 7 Thread: suppress stderr in a bash script Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to

Remove advertisements Sponsored Links totziens View Public Profile Find all posts by totziens #5 05-02-2008 pjottum Registered User Join Date: Feb 2006 Last Activity: 9 April 2009, 9:12 Bash Script Output To Html asked 1 year ago viewed 12207 times active 1 year ago Related 11Does `Segmentation fault` message come under STDERR?2Stderr of piped shell scripts isn't always displayed3Why is it possible to refer What does an 'ü' mean? Edited my post. –vike Mar 30 '12 at 10:09 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using

Bash Script Suppress Error Output

I'm so used to using "if [ true/false ]" for execution control while debugging I used it here purely from habit Adv Reply January 2nd, 2010 #7 rnerwein View Profile Do you want to help us debug the posting issues ? < is the place to report it, thanks ! Bash Script Redirect Error Output I meant $ command &> /dev/null. Bash Script Output Of Command To Variable If not, why?

A more reliable way is exec 3>&2 exec 2> /dev/null (do stuff where you don't want to see the stderr.) exec 2>&3 which saves the original stderr in file descriptor 3, weblink Upvoting. –chradcliffe Feb 18 '10 at 23:02 It's new in Bash 4. –Dennis Williamson Feb 18 '10 at 23:23 4 &> is a lot older than bash 4. That looks like this: your_command "Is anybody listening?" >&- Usually, output goes either to file descriptor 1 (stdout) or 2 (stderr). Thanks! Bash Script Output Color

All rights reserved. Can Customs make me go back to return my electronic equipment or is it a scam? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed navigate here Browse other questions tagged bash scripts or ask your own question.

However, this will not work when command will use the standard error (FD # 2). Bash Script Output File But I still get a message saying that some processes can't be shown since it's not being executed as root. up vote 20 down vote favorite 16 How to hide the screen output (printf) of a shell application in Linux?

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How to deal with a very weak student? In your case, you can use it like, if dpkg -s net-tools > /dev/null 2>&1; then if netstat -tlpn | grep 8080 | grep java > /dev/null 2>&1; then #rest thing Edit i would like to know how to show same message while a set of commands are being executed bash shell share|improve this question edited Aug 5 '13 at 16:21 asked Bash Script Output To Console Browse other questions tagged bash or ask your own question.

Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the Tagged with: > /dev/null 2>&1, cronjobs, I/O redirection, output error messages, redirect stderr to file, redirect stdout to file, standard error, stderr, EasyNext FAQ: FreeBSD: Install bindgraph To Make Graphs About What type of sequences are escape sequences starting with "\033]" Good way to explain fundamental theorem of arithmetic? his comment is here I'm sure you have something in mind where both good and bad output would normally go to stdout.BZT Reply Link josch October 5, 2011, 11:16 pmciccio, the order of the redirection

Join Date Sep 2007 Location Vienna Beans 234 suppress stderr in a bash script hi, i have a bash script that in some cases will print out error messages from various My girlfriend has mentioned disowning her 14 y/o transgender daughter I accepted a counter offer and regret it: can I go back and contact the previous company? If it's in a script anyway. If instead you use "scriptname > nul" then you won't even have a file to delete, as "nul" is the Windows equivalent of /dev/null. –andynormancx Mar 5 '09 at 23:50 1

This has no impact or whatever issue to my script but it's ugly to show to the users. Why can a Gnome grapple a Goliath? Can a creature benefit from differently typed speed bonuses all named fast movement? And avoid redirection in the command itself.

Is there a way for me to prevent it? asked 3 years ago viewed 68258 times active 2 months ago Linked -1 shell - How to hide output 150 With Bash Scripting, how can I suppress all output from a Hot Network Questions Is it possible to check for existence of member template just by identifier?