Regular Expressions 101

Pro

1st Alternative(?:-\d+){3}$

Non-Capturing Group(?:-\d+){3}

{3}repeats the group contents below exactly 3 times:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a Unicode decimal digit, repeated at least once

$end of line

2nd Alternative(-\d+-\d+)$

Group 1(-\d+-\d+)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a Unicode decimal digit, repeated at least once

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a Unicode decimal digit, repeated at least once

$end of line

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

(?:-\d+){3}$|(-\d+-\d+)$

New

NetTAP IPX C-4-16

SmartTAP DP6409 Dual E1-11-16

NetTAP IPX C-4-16-0

SmartTAP DP6409 Dual E1-11-16-0

SYSTEM

NetTAP IPX C-4-16

SmartTAP DP6409 Dual E1-11-16

NetTAP IPX C-4-16-0

SmartTAP DP6409 Dual E1-11-16-0

SYSTEM