Regex cheat sheet is needed to find out the actual regex easily
http://www.petefreitag.com/cheatsheets/regex/
Regex Tester: There are lots of testers are available some are below:
http://www.regextester.com/
https://regex101.com/
http://regexr.com/
Regarding the symbols of regex
https://msdn.microsoft.com/en-us/library/az24scfc(v=vs.110).aspx
Some regex software
RegexBuddy on windows
