regex101: PCRE (Legacy) Substitution Workspace

^start of line

Group 1([0-9A-Fa-f]{8}[-]?[0-9A-Fa-f]{4}[-]?[0-9A-Fa-f]{4}[-]?[0-9A-Fa-f]{4}[-]?[0-9A-Fa-f]{12})

Character Class[0-9A-Fa-f]{8}

{8}matches exactly 8 characters from the set below:

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

A-Fone character from A (65₁₀) to F (70₁₀) (case insensitive)

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

Character Class[-]?

?matches at most one character from the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[0-9A-Fa-f]{4}

{4}matches exactly 4 characters from the set below:

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

A-Fone character from A (65₁₀) to F (70₁₀) (case insensitive)

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

Character Class[-]?

?matches at most one character from the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[0-9A-Fa-f]{4}

{4}matches exactly 4 characters from the set below:

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

A-Fone character from A (65₁₀) to F (70₁₀) (case insensitive)

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

Character Class[-]?

?matches at most one character from the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[0-9A-Fa-f]{4}

{4}matches exactly 4 characters from the set below:

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

A-Fone character from A (65₁₀) to F (70₁₀) (case insensitive)

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

Character Class[-]?

?matches at most one character from the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[0-9A-Fa-f]{12}

{12}matches exactly 12 characters from the set below:

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

A-Fone character from A (65₁₀) to F (70₁₀) (case insensitive)

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

$end of line

Global pattern flags

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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Search reference

Regular Expression

^([0-9A-Fa-f]{8}[-]?[0-9A-Fa-f]{4}[-]?[0-9A-Fa-f]{4}[-]?[0-9A-Fa-f]{4}[-]?[0-9A-Fa-f]{12})$

New

f27a5b7f-0b7c-4e79-aff5-bdb0d34f3a9f
f27a5b7f0b7c4e79aff5bdb0d34f3a9f

$1