Oh .. i'm sorry ,...
The problem was with the regex replacing the directory path within the double quotes.$current_path and $new_path are two variables that i need for substitution.Then i perform a simple regex substitution. However, the double quotes and backslash made it extra hard to perform regex matching .. . The answer may not look great but it works.!! 
$line =~s/\Q$current_path/$new_path\E/ig;

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In reply to Re: regex pattern match by reaper9187
in thread regex pattern match by reaper9187

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