Using Regex to find string that contains one string and excludes a second string?

Question

I'm trying to come up with a single regex expression that matches all strings that contain "mobile" and do not contain "video" I've been struggling to do this in a single expression and would appreciate any help.

What language are you trying to do this in? – twmb Aug 08 '12 at 15:04 — twmb, Aug 08 '12 at 15:04
I'm trying to do this in bash – user1382685 Aug 08 '12 at 15:09 — user1382685, Aug 08 '12 at 15:09

Igor Chubin · Answer 1 · 2012-08-08T15:16:37.910

4

Use the negative look-ahead assertion:

^(?!.*video).*mobile

Example:

$ cat 1.txt
audio-mobile
mobile-video
mobile-video
video-mobile
videomobile
mobile
audio-mobile
audio

$ grep -P '^(?!.*video).*mobile' 1.txt
audio-mobile
mobile
audio-mobile

edited Aug 08 '12 at 15:16

answered Aug 08 '12 at 15:11

Igor Chubin

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Using Regex to find string that contains one string and excludes a second string?

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