current community output=$(command 2>&1 1>&3) # Run command. share|improve this answer answered Aug 19 '15 at 14:34 palmbardier 215 add a comment| up vote 0 down vote If you want to bypass the use of a temporary file you asked 8 months ago viewed 642 times active 5 months ago Related 4Redirect stderr of the double-parentheses construct3Why is it possible to refer to a closed stderr under bash?2redirecting std output navigate here

bash shell redirect variables stderr share|improve this question edited Apr 4 '12 at 7:56 l0b0 19.5k660118 asked Jun 7 '09 at 16:38 psycotica0 6951711 3 What exactly to want to If it's just to the console you redirect stdout to console and stderr to stdout to capture it: ERROR=$(./useless.sh | sed 's/Output/Useless/' 2>&1 1>/dev/ttyX) –Tim Kersten Mar 23 '11 at 11:41 Let's say you want only the stderr, but not stdout. Dennis numbers 2.0 Why did companions have such high social standing?

Bash Redirect Output To Variable Filename

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 This is why pipes work. exec 3>&- # Close fd 3.

  1. This way what the script writes to FD 2 (normally stderr) will be written to stdout because of the second redirection.
  2. exec 3>&1 stderr="$(command &1 1>&3)" exitcode="${?}" echo "STDERR: $stderr" exit ${exitcode} share|improve this answer answered Nov 28 '13 at 15:52 human9 111 add a comment| up vote 1 down vote
  3. Related 364Redirect stderr and stdout in a Bash script728How can I redirect and append both stdout and stderr to a file with Bash?544How to pipe stderr, and not stdout?28Bash script -
  4. How to change user login shell to bash in Linux.
  5. You must use a temporary file (or a named pipe) to achieve that one. –zb' Dec 10 '12 at 18:17 is there some specific reason why you don't want
  6. Harris Jun 18 '13 at 17:58 it worked fine in bash 4.2, and 4.1, i even tried the shopts: compat32, compat31, and it worked there fine too, maybe it
  7. So it will be easier to analyse the following sequence: $(...3>&22>&11>&33>&-) Redirection fd 0 (stdin) fd 1 (stdout) fd 2 (stderr) fd 3 Description initial /dev/tty /dev/tty /dev/tty Let's assume this
  8. BTW, I use this in my dotfiles share|improve this answer answered Feb 13 '15 at 6:22 wener 1364 add a comment| up vote 2 down vote To append to a file
  9. Activate Hearthstone season chest cards?

If you don't actually want to store the exit status, but simply want to take an action upon success or failure, just use if: 1 if command; then 2 printf "it I've found solutions to redirect stderr to stdout, but I can't do that as the stdout is already being sent (via gzip) to a file. Using exec20.2. Bash Capture Stderr To Variable I am not certain I understand the issue well enough at this point to determine how to resolve it yet. –John Mark Mitchell Apr 13 at 20:36 @gniourf_gniourf My

Process 1 exits. (In the original shell process) Read from the pipe and accumulate the data in the ret variable. Bash Redirect Command Output To Variable Post a reply 1 post • Page 1 of 1 bash: Redirecting standard error to a shell variable and standard output to a file «Previous topic | Next topic» Author replace the shell program that's currently running in this process by the segfault program. (In process 1) Wait for process 2 to finish. What could cause the throttle to stick in my Ford Ranger?

How does Gandalf get informed of Bilbo's 111st birthday party? Bash Capture Stderr To File Religious supervisor wants to thank god in the acknowledgements How to make different social classes look quite different? If those answers do not fully address your question, please ask a new question. 2 This StackOverflow thread should answer your question. –Web User Jun 18 '12 at 16:57 Can you think of a solution for this?

Bash Redirect Command Output To Variable

This effect is hidden by putting it into another process and pipe with cat in your last example. Jul 31 '15 at 3:50 This question has been asked before and already has an answer. Bash Redirect Output To Variable Filename Finding a file starting with '-' dash What is the sh -c command? Bash Redirect Error Output To File bash scripting redirect stdout stderr share|improve this question edited Jun 28 '10 at 6:15 msw 31.9k54689 asked Jun 28 '10 at 6:06 thornate 1,08472034 marked as duplicate by tripleeebash Users with

Can a creature benefit from differently typed speed bonuses all named fast movement? check over here I want to get the error output inside the variable ret and display it. #!/bin/bash # segfault.sh ret=`./segfault 2>&1` echo "1) " $ret ret=`eval ./segfault 2>&1` echo "2) " $ret ret=`eval For opening additional files, there remain descriptors 3 to 9. To capture stdout to a file, just add a redirection at the end, for example: { error=$(ls /etc/passwd /etc/bad 2>&1 1>&$out); } {out}>&1 >output Breaking it down, reading from the outside Bash Redirect Error Output To /dev/null

You can try it yourself: c() { echo >&2 'to stderr'; echo 'to stdout'; }; error=$( { result=$(c); } 2>&1); echo "result: $result"; echo "error: $error". Or are you capturing/redirecting it's output? What are the canonical white spaces? http://onlinetvsoftware.net/bash-redirect/bash-redirect-error-message-to-variable.php Not the answer you're looking for?

Skipping directly to level 4 How to make different social classes look quite different? Bash Capture Stderr And Stdout To Variable Finding a file starting with '-' dash How to map and sum a list fast? I accepted a counter offer and regret it: can I go back and contact the previous company?

share|improve this answer edited Oct 11 '12 at 9:14 Stephan 20.6k2599162 answered Jul 25 '12 at 23:35 tfga 214 1 @Stephan what's the point in your edit?? –Shadow Wizard Oct

This was my first attempt: $ .useless.sh 2> >( ERROR=$(<) ) -bash: command substitution: line 42: syntax error near unexpected token `)' -bash: command substitution: line 42: `<)' Then I tried Linked 25 Store / Capture stdout and stderr in different variables (bash) 1217 In the shell, what does “ 2>&1 ” mean? 28 Bash script - store stderr in variable 1 Meaning of "soul-sapping" What to tell to a rejected candidate? Bash Redirect Stdout And Stderr To Different Variables command1 | command2 | command3 > output-file See Example 16-31 and Example A-14.

Multiple output streams may be redirected to one file.

Redirecting Code Blocks20.3. bash stderr share|improve this question edited Jun 18 '12 at 16:57 Tim Pote 13.4k23344 asked Jun 18 '12 at 16:55 stackoverflow 4,0212380143 marked as duplicate by tripleeebash Users with the bash stderr is redirected to stdout, which is then redirected to a file. http://onlinetvsoftware.net/bash-redirect/bash-redirect-error-output.php For example: banana() { printf 'banana to stdout %d\n' {1..10} echo >&2 'banana to stderr' return 42 } . <({ berr=$({ mapfile -t bout < <(banana); } 2>&1; declare -p bout

Do you simply want to view it on the console?