how can i know ip address of any site through cmd option
This may be XP Pro only:
NslookupDisplays information that you can use to diagnose Domain Name System (DNS) infrastructure. Before using this tool, you should be familiar with how DNS works. The Nslookup command-line tool is available only if you have installed the TCP/IP protocol.
Syntax
nslookup [-SubCommand ...] [{ComputerToFind| [-Server]}]
Parameters
-SubCommand ...
Specifies one or more nslookup subcommands as a command-line option. For a list of subcommands, see Related Topics.
ComputerToFind
Looks up information for ComputerToFind using the current default DNS name server, if no other server is specified. To look up a computer not in the current DNS domain, append a period to the name.
-Server
Specifies to use this server as the DNS name server. If you omit -Server, the default DNS name server is used.