Ssh Ip Route Cidr Extraction Via Grep Regex

Extracts IPv4 CIDR ranges from the local routing table by piping ip r (ip route) output into a regex-based grep -Eo pattern that matches dotted-quad addresses followed by a subnet mask (e.g., 192.168.0.0/24). The -o flag ensures only the matched CIDR blocks are returned. This is indicative of automated local network discovery to enumerate internal subnets for lateral movement or environment profiling.