As long as your asynchronous writer will always eventually write a line of the format:

Code:

DIRECTOR> TM_6020 Session [s_GenerateXMLDataFile] completed at [Mon Jun 02 15:32:02 2014].

into your log file as the last line of the file, the following will print the desired counts from your log file as they are added, and quit when the line above is found:

Code:

#!/bin/bash
trap 'kill $(cat $$.tailpid);rm -f $$.tailpid' EXIT
(tail -f -n +1 s_GenerateXMLDataFile.log& echo $! > $$.tailpid) | awk '
$3 ~ /X_fc_Loan/ && $6 == "[XMLTgt_FCSLOANS_Ver25_Norm])" {
	getline
	if($5=="Requested:")
		print $6
}
$2 == "TM_6020" && $3 == "Session" && $4 == "[s_GenerateXMLDataFile]" && \
$5 == "completed" {
	exit
}'
echo 'log file complete'

If you only want it to print counts that are added to the file after you start this script, or to only look at the last 10 lines in the log filie when the script starts and follow along as more data is added (instead of all counts from the start of the log file), change:

Code:

tail -f -n +1

to:

Code:

tail -f -n -1

or:

Code:

tail -f

respectively. Obviously, you can take out the echo at the end of the script if you don't want it.