If the number is divided by itself and one then it is called prime no. 7 is the prime no, 4 is not prime number, using basic airthematic operation in bash shell programming in Linux and UNIX OS we can find the give number is prime number or not

Source code bash shell Programming Algorithm

echo "Enter the number"

read a

i=2

z=0

while [ $i -lt $a ]

do

s=`expr $a % $i`

if [ $s -eq $z ]

then

echo "Not Prime"

exit

else

i=`expr $i + 1`

fi

done

echo "Prime number"

OUTPUT Find PRIME NUMBER CS1252 Operating Systems lap

[redhat35@localhost Rhel5]$ sh prime.sh

Enter the number

7

Prime number

[redhat35@localhost Rhel5]$ sh prime.sh

Enter the number

4

Not Prime

Source code bash shell Programming Algorithm

echo "Enter the number"

read a

i=2

z=0

while [ $i -lt $a ]

do

s=`expr $a % $i`

if [ $s -eq $z ]

then

echo "Not Prime"

exit

else

i=`expr $i + 1`

fi

done

echo "Prime number"

OUTPUT Find PRIME NUMBER CS1252 Operating Systems lap

[redhat35@localhost Rhel5]$ sh prime.sh

Enter the number

7

Prime number

[redhat35@localhost Rhel5]$ sh prime.sh

Enter the number

4

Not Prime

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