Shell Programming and Scripting

typeset -i mCnt=1
typeset -Z4 mCntOut
for mInFile in DSCN*.JPG
do
  mCntOut=$mCnt
  mOutFile=${mInFile%'.JPG'}'_'$mCntOut'.JPG'
  echo "mInFile = <"$mInFile"> mOutFile = <"$mOutFile">"
  mCnt=${mCnt}+1
done

for s in $(seq 1 5)
do   
   val=$(printf "%04d" $s)
   mv DSCN-${s}.JPG DSCN-${val}.JPG
done

#
# Get informations from path
#

imgs_path=$1

set -- `echo $imgs_path | tr 'A-Z/' 'a-z '`
imgs_show=$2
imgs_shot=$3
imgs_element=$6

set -- `echo $7 | tr '_' ' '`
imgs_resolution=$1
imgs_colorspace=$2

#
# Rename image files
#

new_root=${igms_element}_${imgs_resolution}_${imgs_colorspace}
new_seq=0
new_ext=jpg

cd $imgs_path
ls |  \
awk '
   {
      if (match(tolower($0), /-[0-9]+\.jpg$/)) {
         print substr($0, 1, RSTART-1), \
               substr($0, RSTART+1, RLENGTH-5), \
               substr($0, length-2);
      }
   }
    ' | \
sort -k1,1 -k2,2n | \
while read img_root img_seq img_ext
do
   img_name="${img_root}-${img_seq}.${img_ext}"
   new_seq=`expr $new_seq + 1`
   new_name=${new_root}.`expr "0000${new_seq}" : '^.*\(....\)$'`.${new_ext}
   echo "mv ${img_name} ${new_name}"
done