#!/usr/bin/perl 
$en=EN-1000-0003-3;
print "\$en is $en\n";

---------
$en is -1006

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since -1006 is true then the grep in the OP will return all from the source array as stated.

In reply to Re^2: grep return the entire file not the line which matches by Gulliver
in thread grep return the entire file not the line which matches by vikashiiitdm

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