Useful for checking comma separated full names

Take a text of curl command and regex them down to a list of objects with named identifiers, such as id, date, and action.

basic grammar rules

matches parts of an email address and captures elements into groups

在清除字符串里的非字母数字字符且需要留下&用于拆分时可用

Use Filebeat and split log filenames in Logstash into separate fields: `grok { match => "[log[path]", "(?\w+)\.(?[a-zA-Z-]+)\.(?[a-zA-Z-]+)"] }` use filenames like...

Identify files exported from L0 for trfr to L1. This was used before the new Student Daily Attendance monthly naming convention

opinionated email validation based on https://en.wikipedia.org/wiki/Email_address. i have excluded some email patterns that don't seem to be common

/%A-Z+%*\|[0-9]+\|[0-9]+(\.[0-9])?\$/g

vn (-?[0-9. ]+){3}|v (-?[0-9. ]+){3}|f ([0-9. \/]+){3}