regex - Regular expression pattern -

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i looking create regular expression work iis url rewrite rules. looking expression match first 2 instance, not third. looking return name of folder2 whenever there isn't file name present on end of line.

folder1/folder2 folder1/folder2/ folder1/folder2/file.htm  ^folder1/([^/]*)/?$

i thought expression return name of second folder, optional /, when second folder and/or slash end of line. matching first example , none of slashes.

try sample of regex:

folder1[\/]{1}([^\/]+)[\/]{0,1}[\n]

demo


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