Ping

Example

ping -c 5           # Count = 5
     -i 0.5         # Interval = 500ms
     -W 3           # PacketTimeout = 3s (单包超时)
     -w 10          # Timeout = 10s (总超时)
     -s 56          # Size = 56
     -t 128         # TTL = 128
     -M do          # DoNotFragment = true
     -Q 0x10        # TrafficClass = 0x10
     -I eth0        # InterfaceName = "eth0"
     -S 192.168.1.1 # Source = "192.168.1.1"
     -m 100         # Mark = 100 (Linux)
     google.com