Regular Expressions 101

Positive Lookbehind(?<=\s)

\sany whitespace character

Character Class[0-9a-f]{2}

{2}matches exactly 2 characters from the set below:

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

a-fone character from a (97₁₀) to f (102₁₀) (case sensitive)

Group 1(:[0-9a-f]{2}){5}

{5}repeats the group contents below exactly 5 times:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Character Class[0-9a-f]{2}

{2}matches exactly 2 characters from the set below:

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

a-fone character from a (97₁₀) to f (102₁₀) (case sensitive)

\s+any whitespace character, repeated at least once

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[[:digit:]]{2}

{2}matches exactly 2 characters from the set below:

[:digit:]a digit [0-9]

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

(?<=\s)[0-9a-f]{2}(:[0-9a-f]{2}){5}\s+-?[[:digit:]]{2}

New

           SSID BSSID             RSSI CHANNEL
      Something 12:34:56:78:98:ab -10  1
Something guest a2:34:56:78:98:ab -10  2
        Network b2:34:56:78:98:ab -20  3 
 Public network c2:34:56:78:98:ab -30  4