File: copytime.py

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#! /usr/bin/env python

# Copy one file's atime and mtime to another

import sys
import os
from stat import ST_ATIME, ST_MTIME # Really constants 7 and 8

def main():
    if len(sys.argv) <> 3:
        sys.stderr.write('usage: copytime source destination\n')
        sys.exit(2)
    file1, file2 = sys.argv[1], sys.argv[2]
    try:
        stat1 = os.stat(file1)
    except os.error:
        sys.stderr.write(file1 + ': cannot stat\n')
        sys.exit(1)
    try:
        os.utime(file2, (stat1[ST_ATIME], stat1[ST_MTIME]))
    except os.error:
        sys.stderr.write(file2 + ': cannot change time\n')
        sys.exit(2)

main()