backup-file-datedcopy

#!/usr/bin/python3
#
# Makes a copy of the file, adding the current date-n-time to the filename.
#   e.g.   file-datedcopy myfilename   might create   myfilename.2023-10-25_160615
# Made for quick backups, especially while editing config files.

import os, sys, datetime, shutil

now = datetime.datetime.now()
now_s = now.strftime('%Y-%m-%d_%H%M%S')
for arg in sys.argv[1:]:
    dated_name = '%s.%s'%(arg, now_s)
    print(' %s -> %s'%(arg, dated_name))
    shutil.copy(arg, dated_name)  

#Used to be a bash script with the following but python makes it easier to be robust to weird characters

#NEWNAME=$1.`date +%Y-%m-%d_%H%M%S`
#echo $1"  ->  "$NEWNAME
#cp -i $1 $NEWNAME