Regular Expressions 101

Pro

Group 1(.+)

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

Negative Lookahead(?!\.exe)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

exethe literal text exe (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Negated Character Class[^.]+

+matches at least one character outside the set below:

.the literal . (46₁₀ / 56₈ / 2E₁₆)

$end of line

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

(.+)(?!\.exe)\.[^.]+$

notexefile1.txt
exefile1.exe
exefile2.exe
exefile3.exe
notexefile2.php
notexefile3.sh

notexefile1.txt
exefile1.exe
exefile2.exe
exefile3.exe
notexefile2.php
notexefile3.sh