Go into each dir and rename everything in it to dir name(number).jpg

#!/bin/bash

#i is directory name
#j is original file name

cd ~/projects/wndchrm
for i in *; do 
  if [ -d $i ]; then
    y=1
    echo "Entering $i"
    cd $i
    for j in *; do
      echo "$j becomes ${i}_$y.jpg"
      mv $j ${i}_$y.jpg
      y=`expr $y + 1`
    done
  else
    echo "$i is not a directory."
  fi
  cd ~/projects/wndchrm
done