Regular Expressions 101

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

devthe literal text dev (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

sdthe literal text sd (case sensitive)

Character Class[a-z]

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

Character Class[a-z]?

?matches at most one character from the set below:

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

Negative Lookbehind(?<!\/dev\/sda)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

devthe literal text dev (case sensitive)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

sdathe literal text sda (case sensitive)

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

\/dev\/sd[a-z][a-z]?(?<!\/dev\/sda)

New

/dev/sda
/dev/sdb
/dev/sdc
/dev/sdd
/dev/sde
/dev/sdaa
/dev/sdab