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redirect error to file Fox Valley, Illinois

Trick or Treat polyglot しっているはずです is over complicated? If you're given an hour, is it bad to finish a job talk in half an hour? However, if python.tgz is present a line with be outputted which looks like this: # ./ ./python-2.7.3p1.tgz And i've tried: if ls ./python* &> /dev/null; then echo found Python fi and How do I do that in Bash?

Not the answer you're looking for? This site is not affiliated with Linus Torvalds or The Open Group in any way. foo(){ : } 2>&1 | tee foo.log OR #!/bin/bash # My script to do blah ... { command1 command2 } 2>&1 | tee script.log Share this tutorial on:TwitterFacebookGoogle+Download PDF version Found How do I redirect stderr to stdout?

Computing only one byte of a cryptographically secure hash function Accidentally modified .bashrc and now I cant login despite entering password correctly (Seemingly) simple trigonometry problem What is the meaning of For example, 2> redirects file descriptor 2, or standard error. &n is the syntax for redirecting to a specific open file. Now, FDs #3 and #4 point to STDOUT and STDERR respectively. What to do when majority of the students do not bother to do peer grading assignment?

So the issue is, the line generating the error is an error in the script itself, not an error caused by an external command the script calls which has it's output All rights reserved. I made the fix and added the post to community wiki –f3lix Mar 12 '09 at 9:49 4 If you want to append to a file then you must do Useful for daemonizing.

cp: error reading ‘/mnt/tt/file.txt’: Input/output error cp: failed to extend ‘/mnt/tt/file.txt’: Input/output error I want to save that content to a file. If so how can I do it ? –rohith Jul 2 at 13:25 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using They're just syntactic sugar, just use > file 2>&1 which is standard and portable (to Bourne-like shells). –Stéphane Chazelas Dec 9 '14 at 14:26 | show 2 more comments Your Answer Examples: $ who > names Direct standard output to a file named names $ (pwd; ls -l) > out Direct output of both commands to a file named out $ pwd;

How does the exit command work on a Unix terminal? The classic redirection operator (command > file) only redirects standard output, so standard error is still shown on the terminal. For example 2>&1 redirects 2 (standard error) to 1 (standard output); if 1 has been redirected to a file, 2 goes there too. command-line redirect share|improve this question edited May 18 '15 at 13:42 asked May 18 '15 at 12:31 André M.

share|improve this answer edited Oct 7 '10 at 5:44 David Johnstone 14.1k115568 answered Mar 12 '09 at 9:17 dirkgently 74.6k1294163 6 Somebody should restore to the second edit of this Put '2>&1' after '>file.log' and it works. –user25148 Mar 12 '09 at 9:25 1 Good point, I seem to have been doing this wrong all these years... When a girl mentions her girlfriend, does she mean it like lesbian girlfriend? Privacy - Terms of Service - Questions or Comments ≡ Menu Home About Linux Shell Scripting TutoriaL RSS/Feed nixCraft Linux and Unix tutorials for new and seasoned sysadmin.

This functionality is provided by 'tee' command which can write/append to several file descriptors(files, sockets, pipes, etc) at once: tee FILE1 FILE2 ... >(cmd1) >(cmd2) ... Forgotten Lost Highway (New Zealand ) - Is it advisable to do it in a rental car? What is the meaning of the 90/10 rule of program optimization? How could a language that uses a single word extremely often sustain itself?

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 How is this red/blue effect created? Hot Network Questions When a girl mentions her girlfriend, does she mean it like lesbian girlfriend? Bash and other modern shell provides I/O redirection facility.

Limit Notation. Please enable JavaScript to submit this form. You can also use 1 instead of 2 so that stdout gets redirected to the 'file' share|improve this answer answered Sep 24 '11 at 5:53 PaulDaviesC 512922 add a comment| Your no longer refers to the exit status of do_something, but the exit status of tee. –Flimm Jan 20 '15 at 14:09 | show 3 more comments up vote 124 down vote

It almost work, but not from xinted ;( share|improve this answer answered Apr 23 '09 at 13:14 log-control I'm guessing it doesn't work because of "/dev/fd/3 Permission denied". SSH makes all typed passwords visible when command is provided as an argument to the SSH command Does the way this experimental kill vehicle moves and thrusts suggest it contains inertia but not for every stiuation. Tagged with: Easy Next FAQ: FreeBSD: (EE) Failed to load module "fbdev" (module does not exist, 0) Error and Solution Previous FAQ: FreeBSD 10: Apply Binary Updates To Keep Base System

Print some JSON Why were Native American code talkers used during WW2? I am aware of <() and $() process and command substitution respectively but not of {}. –ronnie Oct 20 '12 at 6:54 add a comment| Your Answer draft saved draft You can redirect the file descriptors of the shell permanently (or at least until the next time you change them) by using a redirection on the exec builtin with no command Interaction with dummy variable How to draw and store a Zelda-like map in custom game engine?

It will make STDERR point to STDOUT and then change STDOUT to something else (without touching STDERR) Here is a more detailed tutorial covering both those misconceptions Reply Link iek A slightly more correct is: The output of the ‘command' is redirected to a ‘file-name' and the error chanel (that is the ‘2' is redirected to a pointer (?) of the The accepted answer do_something &>filename doesn't. +1. –Withheld Jan 4 '13 at 16:01 4 @Daniel, but this question is specifically about bash –John La Rooy Aug 19 '13 at 3:38 Tagged with: error message, I/O redirection, keyboard, Linux, log program, program error, redirect stderr stdout to file, redirect stderr to file, redirect stdout to file, redirection, standard error, stderr, stdin, stdout,

New employee has offensive slack handle due to language barrier When a girl mentions her girlfriend, does she mean it like lesbian girlfriend? exec 3>&1 4>&2 1> >(tee >(logger -i -t 'my_script_tag') >&3) 2> >(tee >(logger -i -t 'my_script_tag') >&4) trap 'cleanup' INT QUIT TERM EXIT get_pids_of_ppid() { local ppid="$1" RETVAL='' local pids=`ps x Why is the bridge on smaller spacecraft at the front but not in bigger vessel? It's free: ©2000-2016 nixCraft.

Not the answer you're looking for? How do I redirect stderr to a file? What are the difficulties of landing on an upslope runway Forgotten Lost Highway (New Zealand ) - Is it advisable to do it in a rental car? Are the plane and the third dimensional space homeomorphic?

bash stdout stderr share|improve this question asked Oct 19 '12 at 12:25 ronnie 233238 add a comment| 2 Answers 2 active oldest votes up vote 6 down vote accepted The line Any idea why? –Alexandre Holden Daly May 30 '14 at 12:12 1 Note that (by default) this has the side-effect that $? How come Ferengi starships work? Search for "shell redirection" for more details. –Mat Mar 17 at 5:04 add a comment| up vote 119 down vote The simplest syntax to redirect both is: command &> logfile If

Redirection of I/O, for example to a file, is accomplished by specifying the destination on the command line using a redirection metacharacter followed by the desired destination. Does the local network need to be hacked first for IoT devices to be accesible? OR read more like this:BASH Shell Redirect Output and Errors To /dev/nullBASH Shell: How To Redirect stderr To stdout ( redirect stderr to a File )Unix and Linux: Redirect Error Output I can only redirect one of the outputs, not both at the same time.