Need help for a regular expression

Question

I have following sample string

test1/test2/test3:test4/test5/test6IAmInterestedIn:test7/test8

I am only interested in test6IAmInterestedIn

Answer 1

You can try this DEMO

(?:[^\/]*\/){4}([A-Za-z]{3}[0-9]{3})

where

• (?:[^\/]*\/){4} matches 4 blocks that contain forward slash
• ([A-Za-z]{3}[0-9]{3}) captures your desired pattern