regex101: PCRE2 (PHP) Match Workspace

IP the literal text IP (case sensitive)

Non-Capturing Group(?:\d+|\.|[a-z]()){7}

{7}repeats the group contents below exactly 7 times:

1st Alternative\d+

\d+a digit, repeated at least once

2nd Alternative\.

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

3rd Alternative[a-z]()

Character Class[a-z]

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

Group 1() — does not consume characters

\1the text saved by group 1

Negated Character Class[^\n]+

+matches at least one character outside the set below:

\na line-feed (newline) character (ASCII 10)

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

Search reference

Regular Expression

IP (?:\d+|\.|[a-z]()){7}\1[^\n]+

New

IP bt.ru.https > 192.168.88.10.54276: tcp 3374
IP 192.168.88.10.54276 > 192.168.88.18.https: tcp 0
IP 192.168.88.10.54276 > 192.168.88.18.https: tcp 0
IP 192.168.88.10.54276 > 192.168.88.18.https: tcp 0
IP somedomain.ru.https > 192.168.88.10.54276: tcp 334
IP 192.168.88.10.54276 > 192.168.88.18.https: tcp 0
IP 192.168.88.10.54276 > 192.168.88.18.https: tcp 0
IP 192.168.88.10.54276 > 192.168.88.18.https: tcp 0
IP www.somedomain.ru.https > 192.168.88.10.54276: tcp 228

Regular Expressions 101

Regular Expression

Substitution