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Batch download books from libgen

The idea of this paste is to help optimize the download from Library Genesis and automate the download as simply as possible using a file containing list of links

A normal link from Libgen looks like this
http://gen.lib.rus.ec/book/index.php?md5=3acf98e7e0f54c50f0e4e08d017dc320&open=0

The download link for such link is
http://gen.lib.rus.ec/get?md5=3acf98e7e0f54c50f0e4e08d017dc320&open=0

Now we can easily make a list of download links and save them in a file then input them in wget
wget -i list

But still the problem would be that each file would be saved with a weird name To solve this problem we have to create a file of list of output filenames from the source link then assign for each file its respective filename

Using sed and wget -qO- we can get the title for each link from the source and save the output
wget -qO- -i list.urls | sed -n -e 's!.Genesis: (.)</title>.*!\1!p' > list.names

Now we should create the list of download links from normal links
sed 's:book/index.php:get:g' list.urls > list.downloads

Now that everything seems cool we execute the script
while read durl name; do wget -c "$durl" -O "$name"; done < <(paste list.downloads list.names)