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linux find regex

I’m having trouble using the regex of the find command. Probably something I don’t understand about escaping on the command line.

Why are these not the same?

find -regex '.*[1234567890]'
find -regex '.*[[:digit:]]'

Bash, Ubuntu



Regular expressions with character classes (e.g. [[:digit:]]) are not supported in the default regular expression syntax used by find. You need to specify a different regex type such as posix-extended in order to use them.

Take a look at GNU Find’s Regular Expression documentation which shows you all the regex types and what they support.

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