Never mind: -nl autochomps!

When I run this:

S:\>perl.exe -nle"1+index($_, 'clanks') and print" 8gb.txt | wc -l
   2048

[download]

It reports 2048 hits, which is the same as grep finds:

S:\>grep -F clanks 8gb.txt | wc -l
   2048

[download]

But when I run this:

S:\>perl -le"while(<>){ 1+index($_, 'clanks') and print; }" 8gb.txt | 
+wc -l
   4096

[download]

The number of hits doubles. Can you see why?

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
I'm with torvalds on this Agile (and TDD) debunked I told'em LLVM was the way to go. But did they listen!

In reply to IO mystery (Solved!) by BrowserUk

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