<html>
<pre>
Unix 책에 있는건데요.. 주석은 안넣었습니다...
틀린곳이 3부분이 있다고 합니다...그리고 각줄에대한 설명을좀
부탁드립니다....
#!/bin/sh
pause=20
loopCount=10000
error=0
for arg in $*
do
case $arg in
-t*)
pause=`expr substr $arg 3 10`
;;
-n*)
loopCount=`expr substr $arg 3 10`
;;
*)
user=$arg
;;
esac
done
if [ ! "$user" ]
then
error
fi
if [ $error -eq 1 ]
then
cat << ENDOFERROR
usage: track [-n#] [-t#] userId
ENDOFERROR
exit 1
fi
trap 'track.cleanip $$; exit $exitCode' 0
trap 'exitCode=1; exit' 2 3
echo -n > .track.old.$$
count=0
while [ $count -lt $loopCount ]
do
who | grep $user | sort > .track.new.$$
diff .track.new.$$ .track.old.$$ | sed -f track.sed > .track.report.$$
if [ -s .track.report.$$ ]
then
echo track report for ${user}:
cat .track.report.$$
fi
mv .track.new.$$.track.old.$$
sleep $pause
count=`expr $count + 1`
done
exitCode=0
</pre>
</html>