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I have a file with this type of lines:

blabla bla:bla whatever what:ever
alpha bravo charlie
del:ta

I only want to keep the words that contain a colon.

So the output for the above would be:

bla:bla what:ever

del:ta

Does anyone have any ideas?

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closed as off topic by MDMarra, Massimo, mdpc, Chris S Nov 8 '12 at 20:02

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1 Answer 1

grep -oE '\w+\:\w+' filename.txt

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