Test your RSS pubDate has a correctly formatted date value according to the RFC822 standard It will match timeZoneName (eg GMT, EST) or time zone offset (eg. +0100)

Cisco config find each DHCP Pool Either full subnet pool or a static device entry pool

Find Cisco config DHCP exclisions

Captures every kind of US format I can think of (e.g +1999-999-999, 999-999-9999, +1(999) 999-9999, etc). Remove first coupling group if you don't want a country code.

date

🔪 chop, chop, chop!

Matches any non-repetitive permutations of characters in a set, separated by whitespaces. For the set of characters ABC: Matches: A, BAC, CA... Doesn't match: BB, ABA, CBD...

selecciona todas las palabras relacionadas con "mundo"

resolves bug in vscode extension plibither8.remove-comments v1.2.2, see https://regex101.com/r/1M3UCa/1

Example taken from SO,

Match only Private IPv4 Does not match Public IPv4 and test Nets

Match only Public IPv4 Does not match Private IPv4 and test Nets

Match only Public IPv4 Does not match Private IPv4 However does match test Nets

Valid HTML Tag Pattern Which HTML tags are considered invalid: Tags ending with a different tag than what it started. Example: Hello Tags with open attributes (or closed with a different type of quote). Examples: Hello or Hello Which HTML tags are considered valid: Tags ending with the same tag...

Test

Some if confitions

this is some cursed shit, but it does work. I use it to check whether all my ROMs have valid names or not. Makes it easier to read and, more importantly, deduplicate.

Multiple emails separated with comma Only one space allowed after comma Avoid blank spaces between commas

show the verification link from the html email

Lnav log format for Magento 2 Zend_Log