SED - 删除破折号前的所有字符 [英] sed - delete all characters before dash

问题描述

我有，我想的第一个实例之前删除所有的字符的文件名列表 - 。所以下面在之前的名字：列表显示为那些在后：列表

I have list of filenames for which I want to remove all character before the first instance of -. So the names below in the Before: list appears as those in the After: list.

Before:
Adam James - Welcome Home.txt
Mike & Harry - One Upon - A Time.txt
William-Kent - Prince & The Frog.txt

After:
Welcome Home.txt
One Upon - A Time.txt
Prince & The Frog.txt

我一直在玩SED周围小时无果。

I've been playing around with sed for hours with no avail.

我发现 SED的/ - 。* // 的第一个实例后删除所有字符 - 但我不能找到同样的了。

I found that sed 's/ - .*//' removes all characters after the first instance of - but I cannot find the same for before.

推荐答案

用awk可以这样做：

awk 'BEGIN{FS=OFS="- "} NF>1{$1="";sub(/^- */, "")}'1 inFIle

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