Regular Expressions 101

.+any character (except for line terminators), repeated at least once

Positive Lookahead(?=((\\|\/).+){4})

Group 1((\\|\/).+){4}

{4}repeats the group contents below exactly 4 times:

Group 2(\\|\/)

1st Alternative\\

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

2nd Alternative\/

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

.+any character (except for line terminators), repeated at least once

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

.+(?=((\\|\/).+){4})

New

C:\Change\the\number\2\to\anything\else\and\test\and\see\what\happens
C:\Users\Andrew\Desktop\Folder1\Folder2\Folder3\Folder4\file.txt
C:\ProgramData\Microsoft\Diagnosis\EventTranscript\EventTranscript.db
C:\Windows\System32\config\SAM
C:\Windows\System32\winevt\logs\Application.evtx
C:\Users\%user%\AppData\Local\Microsoft\Windows\Notifications\wpndatabase.db

Regular Expression

Substitution