Regular Expressions 101

Pro

dstthe literal text dst (case sensitive)

\=the literal = (61₁₀ / 75₈ / 3D₁₆)

Group 1((?:10\.)|(?:172\.1[6-9]\.)|(?:172\.2[0-9]\.)|(?:172\.3[0-1]\.)|(?:192\.168\.))

1st Alternative(?:10\.)

Non-Capturing Group(?:10\.)

10the literal text 10

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

2nd Alternative(?:172\.1[6-9]\.)

Non-Capturing Group(?:172\.1[6-9]\.)

172the literal text 172

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

Character Class[6-9]

6-9one character from 6 (54₁₀) to 9 (57₁₀)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

3rd Alternative(?:172\.2[0-9]\.)

Non-Capturing Group(?:172\.2[0-9]\.)

172the literal text 172

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

Character Class[0-9]

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

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

4th Alternative(?:172\.3[0-1]\.)

Non-Capturing Group(?:172\.3[0-1]\.)

172the literal text 172

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

3the literal 3 (51₁₀ / 63₈ / 33₁₆)

Character Class[0-1]

0-1one character from 0 (48₁₀) to 1 (49₁₀)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

5th Alternative(?:192\.168\.)

Non-Capturing Group(?:192\.168\.)

192the literal text 192

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

168the literal text 168

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

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

dst\=((?:10\.)|(?:172\.1[6-9]\.)|(?:172\.2[0-9]\.)|(?:172\.3[0-1]\.)|(?:192\.168\.)).+

New

dst=192.168.1.2
dst=10.10.10.10
dst=101.20.10.7
dst=11.10.10.10
dst=100.26.23.45
dst=123.123.123.123
dst=172.16.24.36
dst=98.23.45.12
dst=10.20.30.40

Substitution

dst=192.168.1.2
dst=10.10.10.10
dst=101.20.10.7
dst=11.10.10.10
dst=100.26.23.45
dst=123.123.123.123
dst=172.16.24.36
dst=98.23.45.12
dst=10.20.30.40