Question

我正在使用youtube-dl从youtube下载WebVTT文件。

典型文件如下：

WEBVTT
Kind: captions
Language: en

00:00:00.730 --> 00:00:05.200 align:start position:0%

[Applause]

00:00:05.200 --> 00:00:05.210 align:start position:0%
[Applause]


00:00:05.210 --> 00:00:11.860 align:start position:0%
[Applause]
hi<00:00:06.440><c> I'm</c><00:00:07.440><c> here</c><00:00:07.740><c> to</c><00:00:08.160><c> talk</c><00:00:08.429><c> to</c><00:00:09.019><c> share</c><00:00:10.019><c> an</c><00:00:10.469><c> idea</c><00:00:10.820><c> to</c>

00:00:11.860 --> 00:00:11.870 align:start position:0%
hi I'm here to talk to share an idea to


00:00:11.870 --> 00:00:15.890 align:start position:0%
hi I'm here to talk to share an idea to
communicate<00:00:12.920><c> but</c><00:00:13.920><c> what</c><00:00:14.790><c> is</c><00:00:14.940><c> communication</c>

00:00:15.890 --> 00:00:15.900 align:start position:0%
communicate but what is communication

我想要一个文本文件：

hi I'm here to talk to share an idea to
communicate but what is communication

使用我在网上找到的代码，我得到了：

cat output.vtt | sed "s/^[0-9]*[0-9\:\.\ \>\-]*//g" | grep -v "^WEBVTT\|^Kind: cap\|^Language" | awk 'BEGIN{ RS="\n\n+"; RS="\n\n" }NR>=2{ print }' > dialogues.txt

但这远非完美。我得到了很多无用的空格，所有句子显示了两次。你介意帮我吗？之前有人问过类似的问题，但提交的答案对我不起作用。

谢谢！

Answer 1

您也许可以执行以下操作：

sed -e '1,4d' -E -e '/^$|]|>$|%$/d' output.vtt | awk '!seen[$0]++' > dialogues.txt

sed删除前4行
sed然后删除任何空白行，或包含]或以>，%结尾的空白行。
awk删除重复的行。

结果：

hi I'm here to talk to share an idea to
communicate but what is communication

您可能需要对其进行一些调整，尽管它可以带来更多所需的结果。

Answer 2

您可以尝试自己在单个awk中关注吗？

awk 'FNR<=4 || ($0 ~ /^$|-->|\[|\]|</){next} !a[$0]++'  Input_file

说明： 现在为上述代码添加说明。

awk '                                     ##Starting awk program here.
FNR<=4 || ($0 ~ /^$|-->|\[|\]|</){        ##Checking condition if line number is less than 4 OR having spaces or [ or ] or --> then go next line.
  next                                    ##next will skip all further statements from here.
  }
!a[$0]++                                  ##Creating an array whose index is $0 and increment its value with 1 with condition that it should NOT be already present in array a, which means it will give only 1 value of each line.
'  Input_file                             ##Mentioning Input_file name here.

将WebVTT文件从Youtube转换为纯文本

2 个答案: