Sed-based YouTube dl

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Sed-based YouTube dl

test $# = 1|| exec echo usage: $0 itag-no sed -n ' s/http:/https:/; s/m.youtube/www.youtube/; s/youtu.be/youtube/; s/embed./watch?v=/; #etc.; s/;.*//; w.'"$0"'' read a < .$0; rm .$0; n=0;while true;do curl -so .$0a $a; unset a; # is tr needed probably not tr -cd '\12\40-\176' < .$0a \ |exec sed ' s/https%3A/\ &/g; s/ *//; /https%3A%2F%2F/!d; s/%3A/:/g; s/%2C/,/g; s/%2F/\//g; s/%3D/=/g; s/%3B/;/g; s/%3F/?/g; s/%26/\&/g; s/\\u0026/\&/g; s/%252C/,/g; s/%252F/\//g; s/%22/\"/g; s/%255B/[/g; s/%255D/]/g; ' \ |exec sed ' /itag='"$1"'/!d; #change if dont want mp4 /video.mp4/!d; #change if want webm /webm/d; /ytplayer/d; s/;+codecs.*//; /timedtext/d; ' > .$0b; rm .$0a; read b < .$0b; rm .$0b; test ${#b} = 0||break #number of retries default is 10 test $n -le 9||exit n=$((n+1)); done exec curl -o 1.mp4 $b #unset b