get exit status from system() callHow to execute shell commands silently?Pipe shell command into buffer in...

How can Republicans who favour free markets, consistently express anger when they don't like the outcome of that choice?

Do generators produce a fixed load?

How to back up a running remote server?

Stateful vs non-stateful app

Does jamais mean always or never in this context?

Transfer over $10k

Confusion about capacitors

Can not tell colimits from limits

How to delegate to implementing class

Python: pythonic way to find last position in string that does not match regex

Can fracking help reduce CO2?

How to figure out whether the data is sample data or population data apart from the client's information?

Why was the Spitfire's elliptical wing almost uncopied by other aircraft of World War 2?

How to stop co-workers from teasing me because I know Russian?

How to determine the actual or "true" resolution of a digital photograph?

What's the metal clinking sound at the end of credits in Avengers: Endgame?

Will a top journal at least read my introduction?

How to replace the "space symbol" (squat-u) in listings?

Phrase for the opposite of "foolproof"

When India mathematicians did know Euclid's Elements?

Please, smoke with good manners

How to pronounce 'C++' in Spanish

Reverse the word in a string with the same order in javascript

Do I have an "anti-research" personality?



get exit status from system() call


How to execute shell commands silently?Pipe shell command into buffer in real-timeUse vi/vim from shell to filter / format textRead from standard input and close if emptyHow to call the fzf Ag command with multiple arguments?`Read` seems to bring an extra line - how to prevent this?My status line is getting erased, so I can't print function resultHow to print an option's value to standard output?Can't echo messages from inside async functionsHow to execute commands in vim, piping the output back into the editor in real time?













1















Calling the function system("<command>") or systemlist("<command>") retrieves the stdout output from a shell call to <command>. How can I retrieve the exit status of that command?



For example, I would like to do something like this:



let output =  system_call_with_exit_status("my_shell_command")
let stdout = output[0]
let exit_status = output[1]
if (exit_status != 0)
echo output
endif


The intention is to print the output from my_shell_command only if the command gives a non-zero exit status.










share|improve this question


















  • 3





    :h v:shell_error

    – Christian Brabandt
    3 hours ago











  • @ChristianBrabandt Thanks, that works.

    – Jasha
    3 hours ago











  • @Jasha consider self-answering if youve got it figured out now

    – D. Ben Knoble
    3 hours ago











  • @D.BenKnoble Ok, will do.

    – Jasha
    3 hours ago
















1















Calling the function system("<command>") or systemlist("<command>") retrieves the stdout output from a shell call to <command>. How can I retrieve the exit status of that command?



For example, I would like to do something like this:



let output =  system_call_with_exit_status("my_shell_command")
let stdout = output[0]
let exit_status = output[1]
if (exit_status != 0)
echo output
endif


The intention is to print the output from my_shell_command only if the command gives a non-zero exit status.










share|improve this question


















  • 3





    :h v:shell_error

    – Christian Brabandt
    3 hours ago











  • @ChristianBrabandt Thanks, that works.

    – Jasha
    3 hours ago











  • @Jasha consider self-answering if youve got it figured out now

    – D. Ben Knoble
    3 hours ago











  • @D.BenKnoble Ok, will do.

    – Jasha
    3 hours ago














1












1








1








Calling the function system("<command>") or systemlist("<command>") retrieves the stdout output from a shell call to <command>. How can I retrieve the exit status of that command?



For example, I would like to do something like this:



let output =  system_call_with_exit_status("my_shell_command")
let stdout = output[0]
let exit_status = output[1]
if (exit_status != 0)
echo output
endif


The intention is to print the output from my_shell_command only if the command gives a non-zero exit status.










share|improve this question














Calling the function system("<command>") or systemlist("<command>") retrieves the stdout output from a shell call to <command>. How can I retrieve the exit status of that command?



For example, I would like to do something like this:



let output =  system_call_with_exit_status("my_shell_command")
let stdout = output[0]
let exit_status = output[1]
if (exit_status != 0)
echo output
endif


The intention is to print the output from my_shell_command only if the command gives a non-zero exit status.







vimscript external-command shell






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 4 hours ago









JashaJasha

1504




1504








  • 3





    :h v:shell_error

    – Christian Brabandt
    3 hours ago











  • @ChristianBrabandt Thanks, that works.

    – Jasha
    3 hours ago











  • @Jasha consider self-answering if youve got it figured out now

    – D. Ben Knoble
    3 hours ago











  • @D.BenKnoble Ok, will do.

    – Jasha
    3 hours ago














  • 3





    :h v:shell_error

    – Christian Brabandt
    3 hours ago











  • @ChristianBrabandt Thanks, that works.

    – Jasha
    3 hours ago











  • @Jasha consider self-answering if youve got it figured out now

    – D. Ben Knoble
    3 hours ago











  • @D.BenKnoble Ok, will do.

    – Jasha
    3 hours ago








3




3





:h v:shell_error

– Christian Brabandt
3 hours ago





:h v:shell_error

– Christian Brabandt
3 hours ago













@ChristianBrabandt Thanks, that works.

– Jasha
3 hours ago





@ChristianBrabandt Thanks, that works.

– Jasha
3 hours ago













@Jasha consider self-answering if youve got it figured out now

– D. Ben Knoble
3 hours ago





@Jasha consider self-answering if youve got it figured out now

– D. Ben Knoble
3 hours ago













@D.BenKnoble Ok, will do.

– Jasha
3 hours ago





@D.BenKnoble Ok, will do.

– Jasha
3 hours ago










1 Answer
1






active

oldest

votes


















2














Mentioned in the comments above, the v:shell_error variable gives the result of the last shell command. So the exit status can be tested as follows:



let output =  system("my_shell_command")
if v:shell_error != 0
echo output
endif





share|improve this answer
























    Your Answer








    StackExchange.ready(function() {
    var channelOptions = {
    tags: "".split(" "),
    id: "599"
    };
    initTagRenderer("".split(" "), "".split(" "), channelOptions);

    StackExchange.using("externalEditor", function() {
    // Have to fire editor after snippets, if snippets enabled
    if (StackExchange.settings.snippets.snippetsEnabled) {
    StackExchange.using("snippets", function() {
    createEditor();
    });
    }
    else {
    createEditor();
    }
    });

    function createEditor() {
    StackExchange.prepareEditor({
    heartbeatType: 'answer',
    autoActivateHeartbeat: false,
    convertImagesToLinks: false,
    noModals: true,
    showLowRepImageUploadWarning: true,
    reputationToPostImages: null,
    bindNavPrevention: true,
    postfix: "",
    imageUploader: {
    brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
    contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
    allowUrls: true
    },
    onDemand: true,
    discardSelector: ".discard-answer"
    ,immediatelyShowMarkdownHelp:true
    });


    }
    });














    draft saved

    draft discarded


















    StackExchange.ready(
    function () {
    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fvi.stackexchange.com%2fquestions%2f19773%2fget-exit-status-from-system-call%23new-answer', 'question_page');
    }
    );

    Post as a guest















    Required, but never shown

























    1 Answer
    1






    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    2














    Mentioned in the comments above, the v:shell_error variable gives the result of the last shell command. So the exit status can be tested as follows:



    let output =  system("my_shell_command")
    if v:shell_error != 0
    echo output
    endif





    share|improve this answer




























      2














      Mentioned in the comments above, the v:shell_error variable gives the result of the last shell command. So the exit status can be tested as follows:



      let output =  system("my_shell_command")
      if v:shell_error != 0
      echo output
      endif





      share|improve this answer


























        2












        2








        2







        Mentioned in the comments above, the v:shell_error variable gives the result of the last shell command. So the exit status can be tested as follows:



        let output =  system("my_shell_command")
        if v:shell_error != 0
        echo output
        endif





        share|improve this answer













        Mentioned in the comments above, the v:shell_error variable gives the result of the last shell command. So the exit status can be tested as follows:



        let output =  system("my_shell_command")
        if v:shell_error != 0
        echo output
        endif






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 2 hours ago









        JashaJasha

        1504




        1504






























            draft saved

            draft discarded




















































            Thanks for contributing an answer to Vi and Vim Stack Exchange!


            • Please be sure to answer the question. Provide details and share your research!

            But avoid



            • Asking for help, clarification, or responding to other answers.

            • Making statements based on opinion; back them up with references or personal experience.


            To learn more, see our tips on writing great answers.




            draft saved


            draft discarded














            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fvi.stackexchange.com%2fquestions%2f19773%2fget-exit-status-from-system-call%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown





















































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown

































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown







            Popular posts from this blog

            “%fieldName is a required field.”, in Magento2 REST API Call for GET Method Type The Next...

            How to change City field to a dropdown in Checkout step Magento 2Magento 2 : How to change UI field(s)...

            變成蝙蝠會怎樣? 參考資料 外部連結 导航菜单Thomas Nagel, "What is it like to be a...