polaris> fgrep -n 'jrew' listener.log                                           
149:16-JUL-2002 07:13:45 * (CONNECT_DATA=(SID=elms)(SERVER=DEDICATED)(CID=(PROGR0

polaris> wc -l listener.log
151 listener.log

151-149 = 2

polaris> tail -3 listener.log > new
polaris> cat new
16-JUL-2002 07:13:45 * (CONNECT_DATA=(SID=elms)(SERVER=DEDICATED)(CID=(PROGRAM=
16-JUL-2002 07:14:50 * service_update * aentmgr9 * 0
16-JUL-2002 07:16:00 * service_update * elms * 0

polaris> cat test               
Date: 16-JUL-2002 Time: 07:13:45

polaris> awk '{ print }' test   
Date: 16-JUL-2002 Time: 07:13:45

polaris> awk 'BEGIN { print "$x" }'
$x                                 

polaris> awk '{print $1 $2 $3 $4}' test
Date:16-JUL-2002Time:07:13:45

polaris> awk '{print $4}' test
07:13:45

polaris> awk '{print $4}' test > time
polaris> cat time
07:13:45

polaris> awk -F":" '{print $2}' time > min
polaris> cat min
13