Regular Expressions 101

\ban ASCII word boundary

Negative Lookbehind(?<![0-9-])

Character Class[0-9-]

0-9one character from 0 (48₁₀) to 9 (57₁₀)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 1(\d+)

\d+a digit, repeated at least once

Negative Lookahead(?![0-9-])

Character Class[0-9-]

0-9one character from 0 (48₁₀) to 9 (57₁₀)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\ban ASCII word boundary

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

Regular Expression

\b(?<![0-9-])(\d+)(?![0-9-])\b

New

max-3 cvd-19 agent-007 8-zoo 2ab c3d ef4 55g h66i jk77 
8m9n o0p2     million     0 22 333  4444

max-3 cvd-19 agent-007 8-zoo 2ab c3d ef4 55g h66i jk77 
8m9n o0p2     million     0 22 333  4444