A single regex with the AND operator instead of OR

Email string validation, manage wildcard and subdomains

International / national format allowing space or dots as separator.

https://www.smzdm.com/p/23523045/p3/#comments 解析引用评论内容, 为保持表情顺序, 使用正则分步替换

Regex for MM/DD/YYYY week

used to pull Date, time and PID from linux log files

Matches Date & time in group 1, and the PID in group 4. will update to match computer name and user names too when i can.

BASH will not know that you are attempting to assign something. The parser will see varname with no = and treat it as a command name, and then pass = and vardata to it as arguments. Match tilde, hash or colon special characters that have either a word character or a string-end on each side, you can...

Hunts for the key and value in environment variables separated by newlines. _ All keys must be uppercase _

This regex will separate KEY=VALUE when VALUE has special characters that cause bash to misinterpret them