commandlinefu.com is the place to record those command-line gems that you return to again and again.
You can sign-in using OpenID credentials, or register a traditional username and password.
Subscribe to the feed for:
Counts of messages by recipient, with frozen messages excluded.
Used it on daily basis, not sure if it's any better than the OPs version, tho'
One advantage is - you can replace 'bash' at the end of the line with eg. cat - to check if the generated command is OK.