look for users to be looged on or off


 
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# 1  
look for users to be looged on or off

what am i doing wrong here's code. i have a file that has names of users and i want to know when they log on and off.Smilie

while true
do
for X in "friends1"
do
if who | grep "$X"
then
echo "$X is logged in"
else
sleep 5
fi

echo who > on
if [ $X -ne on]
then
echo "$X is logged off"
else
else sleep 5
fi
done
done
# 2  
Perhaps you want to explain what exactly you want to do. There is quite a difference between what you are saying and doing.
 

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