Do all virtual files have a size of 0 in Linux?












0















So far, I have only seen virtual files with a size of 0, for example the virtual file /proc/sys/kernel/hostname has a size of 0.



But do all virtual files have a size of 0, or are there some virtual files that the kernel shows the size of?






linux proc







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    0















    So far, I have only seen virtual files with a size of 0, for example the virtual file /proc/sys/kernel/hostname has a size of 0.



    But do all virtual files have a size of 0, or are there some virtual files that the kernel shows the size of?






    linux proc







    share|improve this question









    New contributor




    user342461 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























      0












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      0








      So far, I have only seen virtual files with a size of 0, for example the virtual file /proc/sys/kernel/hostname has a size of 0.



      But do all virtual files have a size of 0, or are there some virtual files that the kernel shows the size of?






      linux proc







      share|improve this question









      New contributor




      user342461 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      So far, I have only seen virtual files with a size of 0, for example the virtual file /proc/sys/kernel/hostname has a size of 0.



      But do all virtual files have a size of 0, or are there some virtual files that the kernel shows the size of?






      linux proc




      linux proc






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      edited 55 secs ago









      Stephen Kitt

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          The vast majority have no size, but there are a few exceptions, which you can see with



          find /proc -type f ! -empty -ls 2>/dev/null


          They are /proc/kcore and various PCI files.



          See /proc/config.gz is of 0 bytes and What happens when I run the command cat /proc/cpuinfo? for related information.






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            The vast majority have no size, but there are a few exceptions, which you can see with



            find /proc -type f ! -empty -ls 2>/dev/null


            They are /proc/kcore and various PCI files.



            See /proc/config.gz is of 0 bytes and What happens when I run the command cat /proc/cpuinfo? for related information.






            share|improve this answer




























              0














              The vast majority have no size, but there are a few exceptions, which you can see with



              find /proc -type f ! -empty -ls 2>/dev/null


              They are /proc/kcore and various PCI files.



              See /proc/config.gz is of 0 bytes and What happens when I run the command cat /proc/cpuinfo? for related information.






              share|improve this answer


























                0












                0








                0







                The vast majority have no size, but there are a few exceptions, which you can see with



                find /proc -type f ! -empty -ls 2>/dev/null


                They are /proc/kcore and various PCI files.



                See /proc/config.gz is of 0 bytes and What happens when I run the command cat /proc/cpuinfo? for related information.






                share|improve this answer













                The vast majority have no size, but there are a few exceptions, which you can see with



                find /proc -type f ! -empty -ls 2>/dev/null


                They are /proc/kcore and various PCI files.



                See /proc/config.gz is of 0 bytes and What happens when I run the command cat /proc/cpuinfo? for related information.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered 31 mins ago









                Stephen KittStephen Kitt

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