Regular Expressions 101

Non-Capturing Group(?:file-name=.*)

file-name=the literal text file-name= (case sensitive)

.*any character (except for line terminators), repeated any number of times

Group 1(\..+)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

Non-Capturing Group(?:&)

&the literal & (38₁₀ / 46₈ / 26₁₆)

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

(?:file-name=.*)(\..+)(?:&)

New

www.xyz.com/private/videos/89FDJKDKFgrFTD-MUyKE9Sn/source?file-name=SampleAudio_0.4mb.mp3&token=exp=1591202847~acl=/private/videos/8OJFREFJOIJFREJ-MUyKE9Sn/source*~hmac=aef161514cdfodsjfodsjorjef081b4c849b8c29c6a37339803866badfd4a16

Regular Expression

Substitution