Regular Expressions 101

Negated Character Class[^\\/]+

+matches at least one character outside the set below:

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

/the literal / (47₁₀ / 57₈ / 2F₁₆)

Positive Lookahead(?=[\\/]?$)

Character Class[\\/]?

?matches at most one character from the set below:

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

/the literal / (47₁₀ / 57₈ / 2F₁₆)

$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.

Search reference

Regular Expression

[^\\/]+(?=[\\/]?$)

Test String
New

a/b/c/
a/b/c
\a\b\c
\a\b\c\
a\b\c
a/b/../../a/b/c/
a/b/../../a/b/c
C:\Windows\system32\kernel32.dll
/etc/network/interfaces
C:\Windows\system32\
/var/log/apt/

Regular Expression

Test StringNew

SubstitutionProcessing...

Test String
New

Substitution
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