Youtube

- The converter to mp3:
- The downloader

- The  converter to mp3: I ~~don't remember where I got this from but it's not my code~~ stole the code from one of the answers [here](https://askubuntu.com/questions/84584/converting-mp4-to-mp3) (How can I refer to a specific answer in stack exchange?). It requires `mplayer` and `lame` to be installed. It basically converts anything that your mplayer plays to an mp3 file. I saved this file under `convert2mp3`.

#! /bin/bash
# Converts to mp3 anything mplayer can play
# Needs mplayer and lame installed

[ $1 ] || { echo "Usage: $0 file1.wma file2.wma"; exit 1; }

for i in "$@"
do
    [ -f "$i" ] || { echo "File $i not found!"; exit 1; }
done

[ -f audiodump.wav ] && {
    echo "file audiodump.wav already exists"
    exit 1
}

for i in "$@"
do
    ext=`echo $i | sed 's/[^.]*\.\([a-zA-Z0-9]\+\)/\1/g'`
    j=`basename "$i" ".$ext"`
    j="$j.mp3"
    echo
    echo -n "Extracting audiodump.wav from $i... "
    mplayer -vo null -vc null -af resample=44100 -ao pcm:waveheader:fast \
    "$i" >/dev/null 2>/dev/null || {
        echo "Problem extracting file $i"
        exit 1
    }
    echo "done!"
    echo -n "Encoding to mp3... "
    lame -m s audiodump.wav -o "$j" >/dev/null 2>/dev/null
    echo "done!"
    echo "File written: $j"
done
# delete temporary dump file
rm -f audiodump.wav

#!/bin/bash
# download a video from youtube and convert it to mp3
# it requires the script convert2mp3

if [[ $(echo $*) ]]; then
    searchterm="$*"
else
    read -p "Enter the video ID: " searchterm
fi

searchterm=$(echo $searchterm | sed -e 's/\ /+/g')

video=$(youtube-dl -g https://youtube.com/v/$searchterm)
Title=$(curl -s https://www.youtube.com/watch?v=$searchterm  | grep -o '<title>.*</title>' | sed 's/\(<title>\| - YouTube<\/title>\)//g')
Name=$(echo ${Title// /_})

[[ -f ~/Videos/$Name.mp4 ]] || wget -O - $video | tee ~/Videos/$Name.mp4 2>&1 > /dev/null

[[ -f ~/Videos/$Name.html ]] || echo '<html><body>' >> ~/Videos/$Name.html && curl -s https://www.youtube.com/watch?v=$searchterm  | grep -o '<p id="eow-description" >.*</p>' | sed 's/\(<p id="eow-description" >\|<\/p>\)//g' >> ~/Videos/$Name.html && echo '</body></html>' >> ~/Videos/$Name.html

[[ -f ~/Videos/$Name.mp3 ]] || convert2mp3 ~/Videos/$Name.mp4