akccakcctw/create_thumbnail.sh

## create_thumbnail.sh
# version 1.1.0
# Rex Tsou
# 2017/04/11

echo -----------
echo v1.1.0
echo Author: Rex Tsou
echo -----------
echo '-h for more information'

function resize_by_width(){
	# ${1} : width(px)
	magick ${img} -resize ${1} output/${img%.jpg}-thumb.jpg
}

function resize_cli(){
	read -r -p "確定要製作縮圖？ [y/N] " response
	response=${response,,}    # to lower case
	if [[ $response =~ ^(yes|y)$ ]]
	then
		mkdir -p output
		echo '<!DOCTYPE html>
		<html lang="en">
		<head>
		<meta charset="UTF-8" />
		<title>Thumbnails</title>
		</head>
		<body>
		<h1>My Imges</h1>' > output/index.html

		read -p "輸出圖片寬度為？(px)" width

		find -name "*\ *" -exec bash -c 'mv "$0" "${0// /_}"' {} \; # 檔名空白改底線

		for dir in $(find -type d -not -path "./output*");
		do
			echo "正在製作 ${dir}"
			echo "<br><p class=\"dir_title\" style=\"font-size:2em\">${dir}</p>" >> output/index.html
			for img in $(find -type f -name "*.jpg" -or -name "*.JPG" -or -name "*.png" -or -name "*.PNG");
			do
				resize_by_width ${width}
				echo "<a href=\"${img}-thumb.jpg\"><img src=\"${img}-thumb.jpg\"></a>" >> output/index.html
			done
		done
		echo "</body>" >> output/index.html
		echo "</html>" >> output/index.html
	else
		exit 1
	fi
}

# ==========================

usage="
$(basename "$0") 使用說明：

	-h  使用說明
	-r  調整尺寸（並產生index.html檔案）

本圖片處理工具，使用 ImageMagick 所提供之命令列介面，使用前須先安裝 imagemagick。
詳細安裝資訊請參考官方網站：https://www.imagemagick.org

"

while getopts ':hr' option; do
	case "$option" in
		h) echo "$usage"
			exit
			;;
		r) resize_cli
			exit
			;;
		:) printf "missing argument for -%s\n" "$OPTARG" >&2
			echo "$usage" >&2
			exit 1
			;;
		\?) printf "illegal option: -%s\n" "$OPTARG" >&2
			echo "$usage" >&2
			exit 1
			;;
	esac
done
	# version 1.1.0
	# Rex Tsou
	# 2017/04/11

	echo -----------
	echo v1.1.0
	echo Author: Rex Tsou
	echo -----------
	echo '-h for more information'

	function resize_by_width(){
	# ${1} : width(px)
	magick ${img} -resize ${1} output/${img%.jpg}-thumb.jpg
	}

	function resize_cli(){
	read -r -p "確定要製作縮圖？ [y/N] " response
	response=${response,,} # to lower case
	if [[ $response =~ ^(yes\|y)$ ]]
	then
	mkdir -p output
	echo '<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8" />
	<title>Thumbnails</title>
	</head>
	<body>
	<h1>My Imges</h1>' > output/index.html

	read -p "輸出圖片寬度為？(px)" width

	find -name "\ " -exec bash -c 'mv "$0" "${0// /_}"' {} \; # 檔名空白改底線

	for dir in $(find -type d -not -path "./output*");
	do
	echo "正在製作 ${dir}"
	echo "<br><p class=\"dir_title\" style=\"font-size:2em\">${dir}</p>" >> output/index.html
	for img in $(find -type f -name ".jpg" -or -name ".JPG" -or -name ".png" -or -name ".PNG");
	do
	resize_by_width ${width}
	echo "<a href=\"${img}-thumb.jpg\"><img src=\"${img}-thumb.jpg\"></a>" >> output/index.html
	done
	done
	echo "</body>" >> output/index.html
	echo "</html>" >> output/index.html
	else
	exit 1
	fi
	}

	# ==========================

	usage="
	$(basename "$0") 使用說明：

	-h 使用說明
	-r 調整尺寸（並產生index.html檔案）

	本圖片處理工具，使用 ImageMagick 所提供之命令列介面，使用前須先安裝 imagemagick。
	詳細安裝資訊請參考官方網站：https://www.imagemagick.org

	"

	while getopts ':hr' option; do
	case "$option" in
	h) echo "$usage"
	exit
	;;
	r) resize_cli
	exit
	;;
	:) printf "missing argument for -%s\n" "$OPTARG" >&2
	echo "$usage" >&2
	exit 1
	;;
	\?) printf "illegal option: -%s\n" "$OPTARG" >&2
	echo "$usage" >&2
	exit 1
	;;
	esac
	done