Regular Expressions 101

^start of line

Group 1(10\.(?!(39|139|239))\d{1,3}\.\d{1,3}\.\d{1,3}\/\d+$)

10the literal text 10

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Negative Lookahead(?!(39|139|239))

Group 2(39|139|239)

1st Alternative39

39the literal text 39

2nd Alternative139

139the literal text 139

3rd Alternative239

239the literal text 239

\d{1,3}a digit, repeated between 1 and 3 times

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d{1,3}a digit, repeated between 1 and 3 times

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d{1,3}a digit, repeated between 1 and 3 times

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\d+a 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.

Search reference

Regular Expression

^(10\.(?!(39|139|239))\d{1,3}\.\d{1,3}\.\d{1,3}\/\d+$)

New

10.154.0.4/32
10.154.0.5/32
10.239.0.4/32
10.239.0.5/32
10.39.0.5/32
10.139.0.10/32
10.110.0.5/32
10.138.0.5/32
10.169.0.5/32
10.159.0.4/32
10.1.0.5/32
10.10.0.5/32
10.99.0.5/32
10.100.0.18/32
10.102.0.18/32
10.103.0.18/32

Regular Expression

Extraction