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#!/bin/bash

# batchaddnum by SFR'2012
# Usage: batchaddnum <folderpath> (DO NOT USE ENDING / PLEASE!)

FOLDERPATH=$1

# Dump all filenames from FOLDERPATH into temporary file
# 'ls -t' option sorts filenames in date order ('-tr' for reversed date order)
# 'tail -n +2' removes "Total..." line
# 'egrep -v '^d' removes directories and '^l' removes links
# next 'cut's to leave only filename

ls "$FOLDERPATH" -A -o -t | tail -n +2 | egrep -v '^d' | egrep -v '^l' | cut -f2- -d ':' | cut -b 4- > /tmp/batchfileslist

# And finally rename all files adding numeric suffix

CNT=1
while read LINE; do
  OLDNAME=$FOLDERPATH"/"$LINE
  if [ ${#CNT} -eq 1 ]; then CNT="00"$CNT; fi
  if [ ${#CNT} -eq 2 ]; then CNT="0"$CNT; fi  
  NEWNAME=$OLDNAME$CNT
  mv "$OLDNAME" "$NEWNAME"
  let CNT=10#$CNT+10#1
done < /tmp/batchfileslist

rm -f /tmp/batchfileslist
exit