204 lines
6.5 KiB
Bash
Executable File
204 lines
6.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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#----------------------------------------------------------------------------
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# img-optimize- Image optimization bash script
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#----------------------------------------------------------------------------
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# Website: https://virtubox.net
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# GitHub: https://github.com/VirtuBox/img-optimize
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# Author: VirtuBox
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# License: M.I.T
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# ----------------------------------------------------------------------------
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# Version 1.1 - 2019-07-12
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# ----------------------------------------------------------------------------
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CSI='\033['
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CEND="${CSI}0m"
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CGREEN="${CSI}1;32m"
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FIND_ARGS=""
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PNG_ARGS=""
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JPG_ARGS=""
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WEBP_ARGS=""
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_help() {
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echo "Bash script to optimize your images and convert them in WebP "
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echo "Usage: img-optimize [options] <images path>"
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echo "If images path isn't defined, img-optimize will use the current directory "
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echo " Options:"
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echo " --jpg ..... optimize all jpg images"
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echo " --png ..... optimize all png images"
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echo " --webp ..... convert all images in webp"
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echo " --nowebp ..... optimize all png & jpg images"
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echo " --all ..... optimize all images (png + jpg + webp)"
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echo " -i, --interactive ..... run img-optimize in interactive mode"
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echo " -q, --quiet ..... run image optimization quietly"
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echo " --path <images path> ..... define images path"
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echo " Other options :"
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echo " -h, --help, help ... displays this help information"
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echo " --cmin [+|-]<n> ... File's status was last changed n minutes ago."
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echo " act find cmin argument (+n : greater than n, -n : less than n, n : exactly n)"
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echo "Examples:"
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echo " optimize all jpg images in /var/www/images"
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echo " img-optimize --jpg --path /var/www/images"
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echo ""
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return 0
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}
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##################################
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# Parse script arguments
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##################################
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if [ "${#}" = "0" ]; then
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_help
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exit 1
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else
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while [ "$#" -gt 0 ]; do
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case "$1" in
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--jpg)
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JPG_OPTIMIZATION="y"
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;;
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--png)
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PNG_OPTIMIZATION="y"
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;;
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--nowebp)
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JPG_OPTIMIZATION="y"
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PNG_OPTIMIZATION="y"
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WEBP_OPTIMIZATION="n"
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;;
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--webp)
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WEBP_OPTIMIZATION="y"
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;;
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--all)
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PNG_OPTIMIZATION="y"
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JPG_OPTIMIZATION="y"
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WEBP_OPTIMIZATION="y"
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;;
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-i | --interactive)
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INTERACTIVE_MODE="1"
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;;
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-q | --quiet)
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PNG_ARGS+=" -quiet"
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JPG_ARGS+=" --quiet"
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WEBP_ARGS+=" -quiet"
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;;
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--cmin)
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if [ "$2" ]; then
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FIND_ARGS+="-cmin $2"
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shift
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fi
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;;
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--path)
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if [ "$2" ]; then
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IMG_PATH="$2"
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fi
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;;
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-h | --help | help)
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_help
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exit 1
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;;
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*) ;;
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esac
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shift
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done
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fi
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##################################
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# Welcome
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##################################
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echo ""
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echo "Welcome to optimize.sh image optimization script."
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echo ""
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if [ "$INTERACTIVE_MODE" = "1" ]; then
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if [ -z "$IMG_PATH" ]; then
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echo "What is the path of images you want to optimize ?"
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read -p "Images path (eg. /var/www/images): " IMG_PATH
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fi
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if [ -z "$JPG_OPTIMIZATION" ]; then
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echo ""
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echo "Do you want to optimize all jpg images in $IMG_PATH ? (y/n)"
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while [[ $JPG_OPTIMIZATION != "y" && $JPG_OPTIMIZATION != "n" ]]; do
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read -p "Select an option [y/n]: " JPG_OPTIMIZATION
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done
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fi
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if [ -z "$PNG_OPTIMIZATION" ]; then
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echo ""
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echo "Do you want to optimize all png images in $IMG_PATH (it may take a while) ? (y/n)"
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while [[ $PNG_OPTIMIZATION != "y" && $PNG_OPTIMIZATION != "n" ]]; do
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read -p "Select an option [y/n]: " PNG_OPTIMIZATION
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done
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fi
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if [ -z "$WEBP_OPTIMIZATION" ]; then
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echo ""
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echo "Do you want to convert all jpg & png images to WebP in $IMG_PATH ? (y/n)"
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while [[ $WEBP_OPTIMIZATION != "y" && $WEBP_OPTIMIZATION != "n" ]]; do
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read -p "Select an option [y/n]: " WEBP_OPTIMIZATION
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done
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echo ""
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echo ""
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fi
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else
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if [ -z "$IMG_PATH" ]; then
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IMG_PATH="$PWD"
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fi
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fi
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##################################
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# image optimization
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##################################
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# optimize jpg
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if [ "$JPG_OPTIMIZATION" = "y" ]; then
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[ -z "$(command -v jpegoptim)" ] && {
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echo "Error: jpegoptim isn't installed"
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exit 1
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}
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echo -ne ' jpg optimization [..]\r'
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cd "$IMG_PATH" || exit 1
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find . -type f \( -iname "*.jpg" -o -iname "*.jpeg" \) ${FIND_ARGS} -print0 | xargs -r -0 jpegoptim ${JPG_ARGS} --preserve --strip-all -m82
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echo -ne " jpg optimization [${CGREEN}OK${CEND}]\\r"
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echo -ne '\n'
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fi
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if [ "$PNG_OPTIMIZATION" = "y" ]; then
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[ -z "$(command -v optipng)" ] && {
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echo "Error: optipng isn't installed"
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exit 1
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}
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# optimize png
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echo -ne ' png optimization [..]\r'
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cd "$IMG_PATH" || exit 1
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find . -type f -iname '*.png' ${FIND_ARGS} -print0 | xargs -r -0 optipng ${PNG_ARGS} -o5 -strip all
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echo -ne " png optimization [${CGREEN}OK${CEND}]\\r"
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echo -ne '\n'
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fi
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if [ "$WEBP_OPTIMIZATION" = "y" ]; then
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[ -z "$(command -v cwebp)" ] && {
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echo "Error: cwebp isn't installed"
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exit 1
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}
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# convert png to webp
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echo -ne ' png to webp conversion [..]\r'
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cd "$IMG_PATH" || exit 1
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find . -type f -iname "*.png" ${FIND_ARGS} -print0 | xargs -r -0 -I {} \
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bash -c '[ ! -f "{}.webp" ] && { cwebp ${WEBP_ARGS} -z 9 -mt -quiet "{}" -o "{}.webp"; }'
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echo -ne " png to webp conversion [${CGREEN}OK${CEND}]\\r"
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echo -ne '\n'
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# convert jpg to webp
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echo -ne ' jpg to webp conversion [..]\r'
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cd "$IMG_PATH" || exit 1
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find . -type f \( -iname "*.jpg" -o -iname "*.jpeg" \) ${FIND_ARGS} -print0 | xargs -0 -I {} \
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bash -c '[ ! -f "{}.webp" ] && { cwebp ${WEBP_ARGS} -q 82 -mt "{}" -o "{}.webp"; }'
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echo -ne " jpg to webp conversion [${CGREEN}OK${CEND}]\\r"
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echo -ne '\n'
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fi
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# We're done !
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echo ""
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echo -e " ${CGREEN}Image optimization performed successfully !${CEND}"
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echo ""
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