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File created under subshell does not keep subshell's umask setting


How do I tell if a regular file does not exist in Bash?How to have the cp command create any necessary folders for copying a file to a destinationopen() in Python does not create a file if it doesn't existPipes and prompts in Python CLI scriptsHow to create a file in Linux from terminal window?What does set -e mean in a bash script?Bash subshell mysteryHow is backgrounding a process implemented in terms of Linux system calls?When are bash variables exported to subshells and/or accessible by scripts?Why doesn't ''var=value echo $var'' emit value?













-1















I'm trying to understand why subshell setting will be discard.



Under the subshell:



export UMASK=000 && touch output.file


Then back to the parent shell to output into output.file
But output.file has inherited parent shell's UMASK=007










share|improve this question









New contributor




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  • By output into output.file, do you mean write to output.file

    – Sonny
    yesterday











  • Unless you have some weird version of touch, then the UMASK environmnent variable will have no effect on the execution of touch. You could try adding ls -al output.file to the end of your subshell's command to confirm.

    – HardcoreHenry
    yesterday















-1















I'm trying to understand why subshell setting will be discard.



Under the subshell:



export UMASK=000 && touch output.file


Then back to the parent shell to output into output.file
But output.file has inherited parent shell's UMASK=007










share|improve this question









New contributor




HZP is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




















  • By output into output.file, do you mean write to output.file

    – Sonny
    yesterday











  • Unless you have some weird version of touch, then the UMASK environmnent variable will have no effect on the execution of touch. You could try adding ls -al output.file to the end of your subshell's command to confirm.

    – HardcoreHenry
    yesterday













-1












-1








-1








I'm trying to understand why subshell setting will be discard.



Under the subshell:



export UMASK=000 && touch output.file


Then back to the parent shell to output into output.file
But output.file has inherited parent shell's UMASK=007










share|improve this question









New contributor




HZP is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












I'm trying to understand why subshell setting will be discard.



Under the subshell:



export UMASK=000 && touch output.file


Then back to the parent shell to output into output.file
But output.file has inherited parent shell's UMASK=007







linux bash






share|improve this question









New contributor




HZP is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question









New contributor




HZP is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question








edited yesterday









HardcoreHenry

1,587520




1,587520






New contributor




HZP is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked yesterday









HZPHZP

1




1




New contributor




HZP is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





HZP is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






HZP is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












  • By output into output.file, do you mean write to output.file

    – Sonny
    yesterday











  • Unless you have some weird version of touch, then the UMASK environmnent variable will have no effect on the execution of touch. You could try adding ls -al output.file to the end of your subshell's command to confirm.

    – HardcoreHenry
    yesterday

















  • By output into output.file, do you mean write to output.file

    – Sonny
    yesterday











  • Unless you have some weird version of touch, then the UMASK environmnent variable will have no effect on the execution of touch. You could try adding ls -al output.file to the end of your subshell's command to confirm.

    – HardcoreHenry
    yesterday
















By output into output.file, do you mean write to output.file

– Sonny
yesterday





By output into output.file, do you mean write to output.file

– Sonny
yesterday













Unless you have some weird version of touch, then the UMASK environmnent variable will have no effect on the execution of touch. You could try adding ls -al output.file to the end of your subshell's command to confirm.

– HardcoreHenry
yesterday





Unless you have some weird version of touch, then the UMASK environmnent variable will have no effect on the execution of touch. You could try adding ls -al output.file to the end of your subshell's command to confirm.

– HardcoreHenry
yesterday












1 Answer
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Never heard of such an environment variable, use umask command instead:



umask 000 && touch output.file





share|improve this answer
























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    Never heard of such an environment variable, use umask command instead:



    umask 000 && touch output.file





    share|improve this answer





























      2














      Never heard of such an environment variable, use umask command instead:



      umask 000 && touch output.file





      share|improve this answer



























        2












        2








        2







        Never heard of such an environment variable, use umask command instead:



        umask 000 && touch output.file





        share|improve this answer















        Never heard of such an environment variable, use umask command instead:



        umask 000 && touch output.file






        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited yesterday

























        answered yesterday









        oguzismailoguzismail

        3,98931326




        3,98931326






















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