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61 lines
1.6 KiB
Python
Executable file
61 lines
1.6 KiB
Python
Executable file
#! /usr/bin/env python3
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# Print the product of age and size of each file, in suitable units.
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#
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# Usage: byteyears [ -a | -m | -c ] file ...
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#
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# Options -[amc] select atime, mtime (default) or ctime as age.
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import sys, os, time
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from stat import *
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def main():
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# Use lstat() to stat files if it exists, else stat()
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try:
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statfunc = os.lstat
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except AttributeError:
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statfunc = os.stat
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# Parse options
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if sys.argv[1] == '-m':
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itime = ST_MTIME
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del sys.argv[1]
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elif sys.argv[1] == '-c':
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itime = ST_CTIME
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del sys.argv[1]
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elif sys.argv[1] == '-a':
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itime = ST_CTIME
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del sys.argv[1]
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else:
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itime = ST_MTIME
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secs_per_year = 365.0 * 24.0 * 3600.0 # Scale factor
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now = time.time() # Current time, for age computations
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status = 0 # Exit status, set to 1 on errors
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# Compute max file name length
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maxlen = 1
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for filename in sys.argv[1:]:
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maxlen = max(maxlen, len(filename))
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# Process each argument in turn
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for filename in sys.argv[1:]:
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try:
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st = statfunc(filename)
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except OSError as msg:
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sys.stderr.write("can't stat %r: %r\n" % (filename, msg))
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status = 1
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st = ()
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if st:
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anytime = st[itime]
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size = st[ST_SIZE]
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age = now - anytime
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byteyears = float(size) * float(age) / secs_per_year
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print(filename.ljust(maxlen), end=' ')
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print(repr(int(byteyears)).rjust(8))
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sys.exit(status)
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if __name__ == '__main__':
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main()
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