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ricc · #1 (**permalink**) 08-16-2005, 03:31 PM

Hi all,
I want to write a script that adds up all the numbers from 1 to 100. I really don't know how, but I know that this is not the right one and we have to use until loop only.

Code:

x=1
until [ $x = 100 ]
do
echo x=$x
y=`expr $x + 1`
echo y=$y
done

I just hope you all know what the script is supposed to do. Add up all the numbers from 1 to 100. or for that matter may be 1 to 200 or more

Thanks,

rc

monk · #2 (**permalink**) 08-16-2005, 11:58 PM

ricc,

Code:

#!/bin/bash
total=0
for i in $(seq 1 10)
do
        total=`expr $total + $i`
done
echo $total

seq print a sequence of numbers so seq 1 10 will create a sequence of numbers 1 2 3 4 5 6 7 8 9 10. Then in total I'm adding the value of $i (which is from 1 to 10) when loop done you should see total via echo command.

Home this helps

ricc · #3 (**permalink**) 08-17-2005, 12:36 PM

Great, it works.

Thank you. I have so much to learn. I guess I can do it with help from you guys.

Thanks again.

rc

sweta · #4 (**permalink**) 08-17-2005, 03:27 PM

Just wanna point out that you can use following code too

Code:

#!/bin/bash
x=1
t=0
while [ $x -le 100 ]
do
t=`expr $t + $x`
x=`expr $x + 1`

done
echo $t

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script to add all numbers from 1 to 100

script to add all numbers from 1 to 100

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