How to escape special characters in .htaccess?

 www.example.com/co开发者_开发技巧aching/Run for 1(hr)

how can I escape () when using rewrite rule?

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You should be able to just use a \ character.

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I think those are just regexes, so a \ should escape the brackets

RewriteRule coaching/(Run) for (1\(hr\)) cgi-bin/log?activity=$1&duraction=$2

Something like that !