几周前,我在这个网站上发现了一个非常有用的 bash 脚本,它可以从 google 图像结果中下载图像(使用命令行从 google 下载图像)
虽然脚本对我来说相当复杂,但我做了一些简单的修改,以免重命名结果以保留原始名称。
但是,从上周开始,脚本停止工作......可能谷歌更新了代码或其他东西,并且脚本的正则表达式不再解析结果。我对谷歌的代码、网络编程或正则表达式知之甚少,看不出有什么问题,虽然我做了一些有根据的猜测,但仍然没有工作。
我的(不工作的)调整脚本是这样的
#! /bin/bash
# function to create all dirs til file can be made
function mkdirs {
file="$1"
dir="/"
# convert to full path
if [ "${file##/*}" ]; then
file="${PWD}/${file}"
fi
# dir name of following dir
next="${file#/}"
# while not filename
while [ "${next//[^\/]/}" ]; do
# create dir if doesn't exist
[ -d "${dir}" ] || mkdir "${dir}"
dir="${dir}/${next%%/*}"
next="${next#*/}"
done
# last directory to make
[ -d "${dir}" ] || mkdir "${dir}"
}
# get optional 'o' flag, this will open the image after download
getopts 'o' option
[[ $option = 'o' ]] && shift
# parse arguments
count=${1}
shift
query="$@"
[ -z "$query" ] && exit 1 # insufficient arguments
# set user agent, customize this by visiting http://whatsmyuseragent.com/
useragent='Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:31.0) Gecko/20100101 Firefox/31.0'
# construct google link
link="www.google.cz/search?q=${query}\&tbm=isch"
# fetch link for download
imagelink=$(wget -e robots=off --user-agent "$useragent" -qO - "$link" | sed 's/</\n</g' | grep '<a href.*\(png\|jpg\|jpeg\)' | sed 's/.*imgurl=\([^&]*\)\&.*/\1/' | head -n $count | tail -n1)
imagelink="${imagelink%\%*}"
# get file extention (.png, .jpg, .jpeg)
ext=$(echo $imagelink | sed "s/.*\(\.[^\.]*\)$/\1/")
# set default save location and file name change this!!
dir="$PWD"
file="google image"
# get optional second argument, which defines the file name or dir
if [[ $# -eq 2 ]]; then
if [ -d "$2" ]; then
dir="$2"
else
file="${2}"
mkdirs "${dir}"
dir=""
fi
fi
# construct image link: add 'echo "${google_image}"'
# after this line for debug output
google_image="${dir}/${file}"
# construct name, append number if file exists
if [[ -e "${google_image}${ext}" ]] ; then
i=0
while [[ -e "${google_image}(${i})${ext}" ]] ; do
((i++))
done
google_image="${google_image}(${i})${ext}"
else
google_image="${google_image}${ext}"
fi
# get actual picture and store in google_image.$ext
wget --max-redirect 0 -q "${imagelink}"
# if 'o' flag supplied: open image
[[ $option = "o" ]] && gnome-open "${google_image}"
# successful execution, exit code 0
exit 0