Here's a nice simple example of when you might need to use it: 

$ perl -e 'print (2+3)/5'
5

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How on earth does that print 5? Because it evaluates as "print the result of 2 + 3, then divide print's return value (which is 1 if print worked) by 5, and then do nothing with the result". This is obvious if you stick another print in there: 

$ perl -e 'print print (2+3)/5'
50.2

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which is parsed as:

print((print(2+3))/5)

In reply to Re^4: return +0 by DrHyde
in thread return +0 by arunvelusamy

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