How can you find out ip address using computer name?

Linux

Most operating systems support the NSLOOKUP command. Use the following example to perform the address-to-name translation:

nslookup 127.0.0.1

If the system is properly registered in the global Domain Name System (DNS), a name will be provided in response to your query.

Answer

In addition to the above, the "host" command is also now supported on most Linux distrubutions. In fact, on most Linux distros the 'nslookup' command is considered to be deprecated.

host 192.168.2.5