搜索非ascii文档 [英] search document for non-ascii
本文介绍了搜索非ascii文档的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我的电脑上的应用程式需要读取文字档案。我有几个，一个不工作;程序无法读取它，并告诉我有一个坏的字符在某处。我的第一个猜测是有一个非ascii字符在某处，但我不知道如何找到它。 Perl或任何一般的正则表达式都会很好。任何想法？
An application on my computer needs to read in a text file. I have several, and one doesn't work; the program fails to read it and tells me that there is a bad character in it somewhere. My first guess is that there's a non-ascii character in there somewhere, but I have no idea how to find it. Perl or any generic regex would be nice. Any ideas?
推荐答案
您可以使用 [^ \x20 -\x7E] 匹配非ASCII字符。
You can use [^\x20-\x7E] to match a non-ASCII character.
例如 grep -P'[^ \x20 -\x7E]'suspicious_file
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