Regexes

Online help & Tools

https://www.rexegg.com/regex-quickstart.html https://www.regular-expressions.info/

Various Patterns:Patterns

# MAC Address:
^([0-9a-zA-Z]{2}[:-]){5}([0-9a-zA-Z]{2})$
([0-9a-zA-Z]{2}[:-]){5}
([0-9a-fA-F][0-9a-fA-F]:){5}([0-9a-fA-F][0-9a-fA-F])

# IP Address:
\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}
(\d(.+?).\d(.+?).\d(.+?).)
(\d+.\d+.\d+.\d+)

# DOMAIN:
([a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?\.)+[a-zA-Z]{2,6}
(\w+://\w{3}.\w+.\w{3})
(\w+://\w{3}.\w+.\w+.\w{3})

# DATE:
(19|20)\d\d([- /.])(0[1-9]|1[012])\2(0[1-9]|[12][0-9]|3[01])
(\d{4}/\d{2}/\d{2})

# TIME:
(\d{2}:\d{2}:\d{2})

# EMAIL:
^([a-z0-9_\.-]+)@([\da-z\.-]+)\.([a-z\.]{2,6})$
(\w+.\w+@\w+.\w{1,3})

# Clear text
[^\w"',:;\.=\-\(\)\'\}~_%\\\$\s\[\]@\?<>€#/]