No it won't. It will print the return values of those s///'s which happens to be 1.

Also from perlstyle: 

Avoid using grep() (or map()) or `backticks` in a void context,
that is, when you just throw away their return values.  Those func-
tions all have return values, so use them.  Otherwise use a fore-
ach() loop or the system() function instead.

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In reply to Re^2: modify the contents of an array by blazar
in thread modify the contents of an array by s_gaurav1091

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