#Counting the number of times a user has logged in
echo "Enter the username"
read uname
times=`who | grep "$uname" | wc -l`
if [ $times -ne 0 ]
then
echo "$uname has logged in $times times"
else
echo "user [$uname] not logged in"
fi
OUTPUT
Safi>sh eb.sh
Enter the username
csc
csc has logged in 3 times
Safi>sh eb.sh
Enter the username
sss
user [sss] not logged in
echo "Enter the username"
read uname
times=`who | grep "$uname" | wc -l`
if [ $times -ne 0 ]
then
echo "$uname has logged in $times times"
else
echo "user [$uname] not logged in"
fi
OUTPUT
Safi>sh eb.sh
Enter the username
csc
csc has logged in 3 times
Safi>sh eb.sh
Enter the username
sss
user [sss] not logged in
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