How to do the DNS lookup using dig command ?

dig = Domain Info Groper

$ dig google.com

....

->>HEADER<<- opcode: QUERY, status: NOERROR, id: 62863

QUESTION SECTION : Your input here

....

ANSWER SECTION : Answer received from the DNS

....


AUTHORITY SECTION : DNS (available) name servers that have authority to respond to this query

....


ADDITIONAL SECTION : Address of name servers listed in the AUTHORITY SECTION

....



Stats SECTION : Statistics including how much time it took to execute this query







Switches to turn off the sections





+nocomments – Turn off the comment lines




+noauthority – Turn off the authority section




+noadditional – Turn off the additional section




+nostats – Turn off the stats section




+noanswer – Turn off the answer section 




+noall - Turn off all the sections 




Example : $ dig google.com +noall +answer



 
View short output - just the IP address of a web site
 
$ dig redhat.com +short
209.132.183.81