script for batch renaming files

[hq4ever]

hello to everyone,

I'm looking for a bash script that would takes some files using the find command and rename them all to the sequence 001, 002, 003, ...

for example for files 189445.png, 18542647.png 154cc4e.png i would get the output 001.png, 002.png, 003.png (it would be cool if it counted in Hexdecimal but decimal would be fine too).

thank you for your help.

[sarumont]

I'm no BASH guru, but I can help you with the logic...

for $x in FIND_COMMAND
parse $x to remove the leading directory
mv $x/$y $x/$z++.jpg

Hope this helps...all you have to do is look up a little BASH tut and put it into real code.

[kyku]

I'm neither a BASH guru, but since most (all?) linux distrubution come equipped with python, here is a script that does the same: (execute it in the directory in which you have your files)

#! /usr/bin/env python

import os, sys

count = 0
for x in os.listdir('.'):
  if x[-4:] == '.png':
    os.rename(x, ('%03x.png' % count)) # change %03x to %03d to count in decimal
    count = count + 1

[hq4ever]

thank you, but i do not understand it.
i wanted bash script because i know just enough of bash to understand the script i asked.
i belive you're script does work, but i do not wan't it to "just work" i wan't to know how it works.

thak you, maxim.

[kyku]

Like this:

#! /bin/bash

x=0
for fname in *.png
do
  mv $fname `printf "%03x.png" $x`
  x=$(($x+1))
done

[hq4ever]

exactly

thank you very much.