Letras, Ñ, acentos, números, guión y barra baja

Grep the daily purchase price for 250 g gold from http://www.scheideanstalt.de/aktuelle-ankaufskurse/ankaufskurse-barren/: gold=$(wget -q -O- http://www.scheideanstalt.de/aktuelle-ankaufskurse/ankaufskurse-barren/ | grep "250 g" | sed -r 's/^.250 g]>([0-9]+)\.([0-9]+[0-9]+[0-9]+)\,([0-9]+[0-9]+).*$...

match the most common url stuctures

Validates a string for valid cron schedules such as 10:45, 11:15 etc.

Verifies a cron schedule pattern such as: 10:45 or multiple times such as: 11:00 22:10 23:15

Pulling specific values from weblog. In this case, the OS.

Validate all posible combinations with western and cyrilic chars.

Get key value in json string

This regex captures Cisco-style FastEthernet ports 13-24

This regex will grab all Cisco-style FastEthernet ports from 1 to 12

accepts 1; 1.1; 112315.23135