linux disc space

[Jeff Schwab]

Chris wrote:
> On Feb 15, 7:10 pm, DataSmash <r... at new.rr.com> wrote:
>> I simply want to capture the free disc space in a variable so that I
>> can compare changes.  I'm aware of a few commands like "df -h" or "du -
>> k", but I can't figure out how to capture those values as a variable.
>> I also looked at os.statvfs(), but that output doesn't seem to make
>> any sense at all to me, knowing the size of the disc.
>> Thanks for your help!
>> R.D.
> 
> import os, statvfs
> s = os.statvfs(".")
> freebytes = s[statvfs.F_BSIZE] * s[statvfs.F_BAVAIL]

Is it worth distinguishing free bytes from available bytes?  I've never 
seen them differ, and I'm not sure how they ever would...

     import os
     import statvfs

     def free_bytes(path):
         stats = os.statvfs(path)
         return stats[statvfs.F_BSIZE] * stats[statvfs.F_BFREE]

     def avail_bytes(path):
         stats = os.statvfs(path)
         return stats[statvfs.F_BSIZE] * stats[statvfs.F_BAVAIL]

     if __name__ == '__main__':
         import sys
         for path in sys.argv[1:]:
             print "%s:" % path,
             print "%dK free," % (free_bytes(path) / 1024),
             print "%dK available" % (avail_bytes(path) / 1024)