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A Benford's law bucketizer on file sizes in a directory
#!/usr/bin/env python
import os
import subprocess
# First, build up the results file. it'll have the form:
# 110 vidioc-g-dv-preset.xml
linecount_cmd = "rm results; for i in *; do find $i -execdir wc -c '{}' \; " + \
">> results; done;"
os.system(linecount_cmd)
# Then figure out how many are in each bucket (linecount's initial digit)
bucket_cmd = 'for i in `jot 9`; do egrep "^[ ]*$i" results| ' + \
'wc -l; done > counts'
os.system(bucket_cmd)
# And how many total files there are...
total_cmd = 'wc -l results'
p = subprocess.Popen(total_cmd, stdout=subprocess.PIPE, shell=True)
(total, _) = p.communicate()
total = int(total.split()[0])
for i,count in enumerate(file('counts', 'r').readlines()):
print '"%d": %0.5f,' % (i + 1, 100 * (float(count) / total))
print "Record count:", total
os.system('echo "biggest:" && sort --general-numeric-sort -b results '
'| tail -n 1')
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