And now let's see a bit more trickier solution. 

$_ = "fish.fish.gif"; 
s/\./\.\./g; 
s/^(.*)\./$1/s; 
s/\.\./_/g; 
print $_, $/;

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In reply to Re: Replace all occurrences but the last by ambrus
in thread Replace all occurrences but the last by kiat

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