You could handle this with a simple two-liner 
perl -F: -e 'END { print "$_ $c{$_}\n" for keys %c }' \
       -ane '$c{$F[1]}++'

[download]
See perlrun for more info on perl's command-line options.
HTH

_________
broquaint

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

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