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script check the users in SHELL every 1 minute ?

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# 1  
Old 09-09-2009
script check the users in SHELL every 1 minute ?
could you please find a solution for this:

I need to write a shell script which checks after every minute whether a friend has logged in or not.The script should report whether that person has logged in along with the amount of time the person was late in logging in.

I have no idea how to do this bcoz i'm really new to it,and it would be really nice if someone could help Smilie
# 2  
Old 09-09-2009
Code:
who | grep <friends name>

# 3  
Old 09-09-2009
Quote:
Originally Posted by Tuxidow
Code:
who | grep <friends name>

while(true)
do
who | grep <friends name>
sleep 60
done

Run this scrit in back groud. or u can set alert by sending the mail
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