Compress bulk images

compress.sh

#!/bin/bash
# You need to install pngquant 
# On mac os `brew install pngquant`
# copy all directories 15-20 
# rename the copied directories with suffix i 
# ex. i15 , i16 , i17 , i18 ,i19, i20
# This loop will do on only 1 level of nested directories 

PH_INPUT_DIRS=`ls i15`
PH_OUTPUT_DIR="15"
echo "creating directories"
mkdir 15 16 17 18 19 20

echo "Creating directories in output folder"
for dir in $PH_INPUT_DIRS; do
    mkdir "$PH_OUTPUT_DIR/$dir"
done

echo "preform conver all images to png-8"
for dir in $PH_INPUT_DIRS; do
    cd "i15/$dir"
    pngquant *.png
    for file in *-fs8.png; do
        newfile=$(echo $file | sed 's/\-fs8\.png//g')
        # echo $newfile
        mv $file "../../15/$dir/$newfile.png"
    done 
    cd ../..
done

echo "DONE!!! compressing 15"

PH_INPUT_DIRS_16=`ls i16`
PH_OUTPUT_DIR_16="16"

echo "Creating directories in output folder"
for dir in $PH_INPUT_DIRS_16; do
    mkdir "$PH_OUTPUT_DIR_16/$dir"
done

echo "preform conver all images to png-8"
for dir in $PH_INPUT_DIRS_16; do
    cd "i16/$dir"
    pngquant *.png
    for file in *-fs8.png; do
        newfile=$(echo $file | sed 's/\-fs8\.png//g')
        # echo $newfile
        mv $file "../../16/$dir/$newfile.png"
    done 
    cd ../..
done

echo "DONE!!! compressing 16"

PH_INPUT_DIRS_17=`ls i17`
PH_OUTPUT_DIR_17="17"

echo "Creating directories in output folder"
for dir in $PH_INPUT_DIRS_17; do
    mkdir "$PH_OUTPUT_DIR_17/$dir"
done

echo "preform conver all images to png-8"
for dir in $PH_INPUT_DIRS_17; do
    cd "i17/$dir"
    pngquant *.png
    for file in *-fs8.png; do
        newfile=$(echo $file | sed 's/\-fs8\.png//g')
        # echo $newfile
        mv $file "../../17/$dir/$newfile.png"
    done 
    cd ../..
done

echo "DONE!!! compressing 17"

PH_INPUT_DIRS_18=`ls i18`
PH_OUTPUT_DIR_18="18"

echo "Creating directories in output folder"
for dir in $PH_INPUT_DIRS_18; do
    mkdir "$PH_OUTPUT_DIR_18/$dir"
done

echo "preform conver all images to png-8"
for dir in $PH_INPUT_DIRS_18; do
    cd "i18/$dir"
    pngquant *.png
    for file in *-fs8.png; do
        newfile=$(echo $file | sed 's/\-fs8\.png//g')
        # echo $newfile
        mv $file "../../18/$dir/$newfile.png"
    done 
    cd ../..
done

echo "DONE!!! compressing 18"


PH_INPUT_DIRS_19=`ls i19`
PH_OUTPUT_DIR_19="19"

echo "Creating directories in output folder"
for dir in $PH_INPUT_DIRS_19; do
    mkdir "$PH_OUTPUT_DIR_19/$dir"
done

echo "preform conver all images to png-8"
for dir in $PH_INPUT_DIRS_19; do
    cd "i19/$dir"
    pngquant *.png
    for file in *-fs8.png; do
        newfile=$(echo $file | sed 's/\-fs8\.png//g')
        # echo $newfile
        mv $file "../../19/$dir/$newfile.png"
    done 
    cd ../..
done

echo "DONE!!! compressing 19"


PH_INPUT_DIRS_20=`ls i20`
PH_OUTPUT_DIR_20="20"

echo "Creating directories in output folder"
for dir in $PH_INPUT_DIRS_20; do
    mkdir "$PH_OUTPUT_DIR_20/$dir"
done

echo "preform conver all images to png-8"
for dir in $PH_INPUT_DIRS_20; do
    cd "i20/$dir"
    pngquant *.png
    for file in *-fs8.png; do
        newfile=$(echo $file | sed 's/\-fs8\.png//g')
        # echo $newfile
        mv $file "../../20/$dir/$newfile.png"
    done 
    cd ../..
done

echo "DONE!!! compressing 20"