This will count the second field ignoring duplicates 
perl -F: -e 'END { print "$_ $c{$_}\n" for keys %c }' \
       -ane '$c{$F[1]}++ unless $d{"@F[1,2]"}++'

[download]
I assume this is what you meant no duplicates in the third field.
HTH

_________
broquaint

In reply to Re: Re: Re: Counting lines by content by broquaint
in thread Counting lines by content by willa

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