Regular Expressions 101

\ban ASCII word boundary

session-id=the literal text session-id= (case sensitive)

Character Class[A-Za-z0-9]+

+matches at least one character from the set below:

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

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

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

\ban ASCII word boundary

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

\bsession-id=[A-Za-z0-9]+\b

New

www.somewebsite.com/misc-session/;session-id=21A3e2a1R3213
www.somewebsite.com/misc-session/;session-id=213S2D1e3R2D13?someExtraParam=false

or

www.somewebsite.com/misc-session/extra-path/;session-id=2A1X32z13w213?someExtraParam=false

Regular Expression

Extraction