i was trying to make this example in shell book to run
$ cat on
#
# determine if someone is logged on
#
user="$1"
if who | grep "^$user " > /dev/null
then
echo "$user is logged on"
else
echo "$user is not logged on"
fi
$
i have chmod +x on and use hp system and use korn shell.
why every time i tried it said , unknow host name?
exp :
$ on huangcy
unknow host name
it suppose to display either user log on or not log on.
please help man thanx
