Shell Programming and Scripting

 
#ifconfig -a | nawk '/1.1.1.1/{print}'
inet 1.1.1.1 netmask xxxxxxxxx broadcast 0.0.0.0

 
# ifconfig -a | nawk -v ip=1.1.1.1 '/ip/{print}'

ifconfig -a | nawk -v ip=1.1.1.1  ' match( $0, ip )'

 
bge0: flags=123243432<UP,BROADCAST,RUNNING,MULTICAST,IPv4,FIXEDMTU> mtu 1500 index 2
        inet 1.1.1.1 netmask xxxxxxxx broadcast 0.0.0.0
        ether 0:11:11:23:w2:62

ifconfig -a |awk -v ip=1.1.1.1  ' match( $0, ip ) {getline; print $2; exit}'

ifconfig -a | awk -v ip=1.1.1.1  '$0 ~ ip'

ifconfig -a |awk -v ip=1.1.1.1  ' 
match( $0, ip ) {      # if the ip address is on this line
     getline;             # get the next line from the input file
     print $2;            # print the second field 
     exit;                 # stop processing input
}'

ifconfig -a |awk -v ip=1.1.1.1  ' 
{
  if( match( $0, ip ) )
  {
     getline;
     print $2;
     exit;
  }
}'