Is there any gain in using globs over the variables themselves, such as: 
perl -lpe '}{$_=$.' file

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?

On another similar note, last semester my C++ students had to write a small C++ program that averages numbers from a flatfile (one per line). I wowed them with this little doosie: 

perl -lpe '$s+=$_}{$_=$s/$.' file

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UPDATE
That's a fair cop! :)

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)

In reply to (jeffa) 2Re: How To Count Lines In File? by jeffa
in thread How To Count Lines In File? by Cody Pendant

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