Is there a specific reason for doing an exact match via regex when an equality check would suffice? 
    if ( grep $_ eq $x, @b ) { ... }

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This would be faster and would not be vulnerable to metacharacter interpolation.

Ivan Heffner
Sr. Software Engineer, DAS Lead
WhitePages.com, Inc.

In reply to Re: Grep expansion problem by Codon
in thread Grep expansion problem by Lyndley

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