Regular Expressions 101

Explanation
Pro

Group 1(.*\-\..*)

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

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

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.

25 tokens

(.*\-\..*)

New

filename.jpeg
filename-.png
file name.doc
file name 3.mp4
file name -.dxg
file.name.mov

filename.jpeg
filename-.png
file name.doc
file name 3.mp4
file name -.dxg
file.name.mov