I have an input string in the format key=value and the value always ends with a line break i.e. \n. I need to double quote the value part of my string, excluding the line break and I did the following to do that, but, for some reason, the equal to operator isn't registering in my substitue operation; my output remains the same as input even after the substitute operation. How can I achieve this? 

#input string: parameter=TO_DATE('1900-01-01','YYYY-MM-DD')\n
#desired output: parameter="TO_DATE('1900-01-01','YYYY-MM-DD')"\n
$input_string =~ s/"="/"=\""/esg;
$input_string =~ s/"\n"/"\"\n"/esg;
print "$input_string";

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In reply to replacing equal to operator by ty_sopw

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