You can use forward slashes on Windows within Perl, so realistically the only thing that needs to change is the path itself (ie. Windows certainly does not have a /opt/devOps/... directory, more like c:/opt/.... You can however convert them to backslashes if you wish, but I wouldn't bother.

The other slashes are for regexes and should most definitely not be changed. Only the file paths if you want to.

However, there may be more that we don't know of, so you'll have to deal with each error as it comes up. It doesn't look like you're using use strict; or use warnings;, so the process may be a bit tedious, but 800 lines shouldn't be very bad at all to convert.