Metacharacters serve specific purposes in a pattern. If any of these metacharacters are to be embedded
in the pattern literally, you should quote them by prefixing it by "\", similar to the idea of escaping in
double-quoted string. In fact, the pattern in between the forward slashes are treated as a double-quoted string.
Example:
($string =~ m/\(\)/)
The above code "(" braces gives an error, so in order to escape this parenthesis, we are using the
forward slashes, it is similar for using the double quotes.
A Note
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