2021 March

IP Addresses Extract all IP addresses from a log cat LOG.FILE | grep -E -o “([0-9]{1,3}[\.]){3}[0-9]{1,3}” | sort Display Unique IP address cat LOG.FILE | grep -E -o “([0-9]{1,3}[\.]){3}[0-9]{1,3}” | sort | uniq Display Unique IP address and number of occurances Note: Sort must come before unique for this to work cat LOG.FILE | grep… read more »