get exit status from system() call












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.






vimscript external-command shell







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.






vimscript external-command shell







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.






vimscript external-command shell







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




vimscript external-command shell






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 3 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
























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    1 Answer
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    active

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    active

    oldest

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    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






























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