VLC/CVLC bash 脚本
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VLC/CVLC bash script
提问by Venky
I have a list of URLs, over which i need to run VLC in a bash script. For each URL, i wish to run VLC for a couple of minutes (some of them could be infinite netradio URLs) and know if VLC was able to play it successfully. How do I judge through a bash script whether VLC was able to play the URL ? I tried echoing $? (ie the return code), but it always gave me 0 irrespective of whether the URL was played or not. Please help !
我有一个 URL 列表，我需要在 bash 脚本中运行 VLC。对于每个 URL，我希望运行 VLC 几分钟（其中一些可能是无限的 netradio URL）并知道 VLC 是否能够成功播放它。如何通过 bash 脚本判断 VLC 是否能够播放 URL？我试过回显 $? （即返回代码），但无论 URL 是否被播放，它总是给我 0。请帮忙 ！
Regards, Venky
问候，文基
回答by Jeff M
To determine if the video played or not find a message that reflects that it played and grep for it. Grep for messages that indicate failure. You can also use --vvv if you want to get more information. You will see that there are a few distinct messages that get displayed upon success or failure.
确定视频是否已播放，找到反映它已播放的消息并对其进行 grep。用于指示失败的消息的 Grep。如果您想获得更多信息，也可以使用 --vvv。您会看到成功或失败时会显示一些不同的消息。
Or I would pull the sources and grep for exit codes
或者我会拉取源代码和 grep 以获取退出代码
find . -name "*.c" | xargs grep "exit("
找 。-name "*.c" | xargs grep "退出("
Then you can get an idea of the exit codes.
然后您可以了解退出代码。
Good luck.
祝你好运。
