Numbers in the arguments of the function ioutil.WriteFile











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Programming with Go, I noticed that the function ioutil.WriteFile (from the ioutil library) needs some numbers as arguments. What do these numbers mean?



Example:



ioutil.WriteFile(file_to_write, byte(string_to_write), 0644) // what 0644 stands for?






go







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  • 5




    golang.org/pkg/io/ioutil/#WriteFile golang.org/pkg/os/#FileMode
    – tkausl
    Nov 8 at 22:01






  • 4




    They are UNIX filesystem permission bits
    – maerics
    Nov 8 at 22:04

















up vote
0
down vote

favorite












Programming with Go, I noticed that the function ioutil.WriteFile (from the ioutil library) needs some numbers as arguments. What do these numbers mean?



Example:



ioutil.WriteFile(file_to_write, byte(string_to_write), 0644) // what 0644 stands for?






go







share|improve this question


















  • 5




    golang.org/pkg/io/ioutil/#WriteFile golang.org/pkg/os/#FileMode
    – tkausl
    Nov 8 at 22:01






  • 4




    They are UNIX filesystem permission bits
    – maerics
    Nov 8 at 22:04















up vote
0
down vote

favorite









up vote
0
down vote

favorite











Programming with Go, I noticed that the function ioutil.WriteFile (from the ioutil library) needs some numbers as arguments. What do these numbers mean?



Example:



ioutil.WriteFile(file_to_write, byte(string_to_write), 0644) // what 0644 stands for?






go







share|improve this question













Programming with Go, I noticed that the function ioutil.WriteFile (from the ioutil library) needs some numbers as arguments. What do these numbers mean?



Example:



ioutil.WriteFile(file_to_write, byte(string_to_write), 0644) // what 0644 stands for?






go




go






share|improve this question













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asked Nov 8 at 21:59









konniskatt

2614




2614








  • 5




    golang.org/pkg/io/ioutil/#WriteFile golang.org/pkg/os/#FileMode
    – tkausl
    Nov 8 at 22:01






  • 4




    They are UNIX filesystem permission bits
    – maerics
    Nov 8 at 22:04
















  • 5




    golang.org/pkg/io/ioutil/#WriteFile golang.org/pkg/os/#FileMode
    – tkausl
    Nov 8 at 22:01






  • 4




    They are UNIX filesystem permission bits
    – maerics
    Nov 8 at 22:04










5




5




golang.org/pkg/io/ioutil/#WriteFile golang.org/pkg/os/#FileMode
– tkausl
Nov 8 at 22:01




golang.org/pkg/io/ioutil/#WriteFile golang.org/pkg/os/#FileMode
– tkausl
Nov 8 at 22:01




4




4




They are UNIX filesystem permission bits
– maerics
Nov 8 at 22:04






They are UNIX filesystem permission bits
– maerics
Nov 8 at 22:04














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These numbers are file permission bits.



To know what these bits means see : permissions (flags) explained






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    up vote
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    These numbers are file permission bits.



    To know what these bits means see : permissions (flags) explained






    share|improve this answer

























      up vote
      2
      down vote



      accepted










      These numbers are file permission bits.



      To know what these bits means see : permissions (flags) explained






      share|improve this answer























        up vote
        2
        down vote



        accepted







        up vote
        2
        down vote



        accepted






        These numbers are file permission bits.



        To know what these bits means see : permissions (flags) explained






        share|improve this answer












        These numbers are file permission bits.



        To know what these bits means see : permissions (flags) explained







        share|improve this answer












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        answered Nov 9 at 4:07









        Emruz Hossain

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