Regular Expressions 101

proc_notes_the literal text proc_notes_ (case sensitive)

1st AlternativeJanuary

Januarythe literal text January (case sensitive)

2nd AlternativeFebruary

Februarythe literal text February (case sensitive)

3rd AlternativeMarch

Marchthe literal text March (case sensitive)

4th AlternativeApril

Aprilthe literal text April (case sensitive)

5th AlternativeMay

Maythe literal text May (case sensitive)

6th AlternativeJune

Junethe literal text June (case sensitive)

7th AlternativeJuly

Julythe literal text July (case sensitive)

8th AlternativeAugust

Augustthe literal text August (case sensitive)

9th AlternativeSeptember

Septemberthe literal text September (case sensitive)

10th AlternativeOctober

Octoberthe literal text October (case sensitive)

11th AlternativeNovember

Novemberthe literal text November (case sensitive)

12th AlternativeDecember

Decemberthe literal text December (case sensitive)

\d{4}a digit, repeated exactly 4 times

.any character (except for line terminators)

txtthe literal text txt (case sensitive)

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

proc_notes_(January|February|March|April|May|June|July|August|September|October|November|December)\d{4}.txt

New

proc_notes_April2020.txt