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curl 指令預設 相同名稱解決方式是覆蓋
sudo su - jenkins
youtube如果給的是頻道會把全部頻道都下載

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vim etc/default/jenkins
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curl -L https://yt-dl.org/downloads/latest/youtube-dl -o youtube-dl
chmod a+x youtube-dl
./youtube-dl --version
./youtube-dl https://www.youtube.com/watch?v=RgKAFK5djSk