#!/usr/bin/python

# Rename and sequentially number files

import os
import sys
import re

if len(sys.argv) == 1:
  print " "
  print "Usage: file_renumber.py basename file1.ext file2.ext ..."
  print " "
  sys.exit("Renumbers sequential files \n")
elif len(sys.argv) >= 3:
  basename = sys.argv[1]
  infiles = sys.argv[2:]
else:
  print " "
  print "Usage: file_renumber.py basename file1.ext file2.ext ..."
  print " "
  sys.exit("Renumbers sequential files with a new basename\n")

# Set a clobber flag True so that images can be overwritten
# Otherwise set it False for safety

n = -1
  
for infile in infiles:
  
  n = n +1
  
  # Create an output file name 

  inbase = os.path.splitext(os.path.basename(infile))[0]
  inext = os.path.splitext(os.path.basename(infile))[1]
  val = re.findall(r"\d+", inbase)
  intval = int(float(val[0]))
  valtxt = "%04d" % (intval,)
  outfile = basename + valtxt + inext
  os.rename(infile, outfile)

exit()