In your question, are you using '#' as wildcards? Does that mean that c, t, and d will always be present in a suitable match? Will there always be whitespace on either side of a suitable capture? If so: 

if( $_ =~ m/\s(c\d+t\d+d\d+)\s/ ) {
    print $1;
}

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Dave

In reply to Re: boundries \b \B by davido
in thread boundries \b \B by Anonymous Monk

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