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

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

Test

匹配 Quicker 中图标的几种风格 , (一些 fontawesome 的图标)

how to implement this in htaccess???

Extract Losers list from ET LOSERS selector