Picture Resize, create original, smaller and thumbs to be used on a jekyll blog

picResize.sh

#!/bin/bash

#-------------------------------------------------------
# Daniel Spillere Andrade - www.danielandrade.net
# Script to Create Images for websites
#-------------------------------------------------------


#-- VARIABLES --#
BIG=960000
SMALL=326900
TB="220x110"
SNUM=1           # Start Number


#-- Code Starts Here --#

#Creating temporary folders
mkdir thumb
mkdir big
mkdir small

#Coping files (Copying the originals so we won't recompress)
cp *.jpg big/
cp *.jpg small/
cp *.jpg thumb/
rm *.jpg

#-- BIG FOLDER --------------------------#
cd big

echo "Creating big pictures"

#Renaming
a=$SNUM
for i in *.jpg; do
  new=$(printf "pic%02d_o.jpg" ${a})
  mv ${i} ${new}
  let a=a+1
done

#Resizing
for f in *.jpg
do
  echo "Processing file: $f"
  convert $f -resize $BIG@  -colorspace RGB +sigmoidal-contrast 11.6933 -define filter:filter=Sinc -define filter:window=Jinc -define filter:lobes=3 -sigmoidal-contrast 11.6933 -colorspace sRGB $f
done

mv * ..

#-- SMALL FOLDER --------------------------#

cd ../small

echo "Creating small pictures"

#Renaming
a=$SNUM
for i in *.jpg; do
  new=$(printf "pic%02d.jpg" ${a})
  mv ${i} ${new}
  let a=a+1
done

#Resize Pics
for f in *.jpg
do
  echo "Processing file: $f"
  convert $f -resize $SMALL@  -colorspace RGB +sigmoidal-contrast 11.6933 -define filter:filter=Sinc -define filter:window=Jinc -define filter:lobes=3 -sigmoidal-contrast 11.6933 -colorspace sRGB $f
done

mv * ..

#-- THUMBS FOLDER --------------------------#

cd ../thumb

echo "Creating thumb pictures"

#Renaming
a=$SNUM
for i in *.jpg; do
  new=$(printf "pic%02d_tb.jpg" ${a})
  mv ${i} ${new}
  let a=a+1
done

#Resizing Pics
for f in *.jpg
do
  echo "Processing file: $f"
  convert $f -thumbnail $TB^ -gravity center -extent $TB $f
done

#------------------------------------------------

mv * ..
cd ..
rm -rf big/ thumb/ small/

echo "All done mister!"

# The End! :)