You don't need to escape the ':' in the regex.
@cnip = split /:/, $datb
will do fine.

Also using cat & grep seems a bit messy, what about: 

use File::Slurp;
@datb = grep { /$cnip/ } read_file('tech3');

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In reply to Re: Re: Re: Checking Input using reg exp. by gav^
in thread Checking Input using reg exp. by defyance

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