bash script of a simple calculator

lifeisgreat20009

Expand|Select|Wrap|Line Numbers

 Echo “Enter first number:”

Read n1

Echo “Enter Second number:”

Read n2

Echo “Enter operation to be carried out that is +, - , / or X”

Read opr

If [ opr==”+” ]

Then

echo $(( $a + $b ))

elif [ opr==”-“]

then

echo $(( $a - $b ))

elif [ opr==”/” ]

then

echo $(( $a / $b )) 

elif [ opr==”X” ]

then

echo $(( $a * $b ))

fi

Is the script above correct syntactically ?? its not working fine. I searched net for syntax errors but all seems to be correct. Plz tell me where modifications are needed in the code ?
thnx and regards

Banfa

You're entering n1 and n2 and then operating on a and b

lifeisgreat20009

otherwise is it ok ??
I made changes here only by mistake..
Its a and b only in the original script

Banfa

Sorry I'm not a bash expert it is just appeared to be an obvious mistake in any programming language.

gpraghuram

Hi,
There are some couple of errors in the code .
check this

Expand|Select|Wrap|Line Numbers

 echo "Enter first number:" 

read a 

echo "Enter Second number:" 

read b 

echo "Enter operation to be carried out that is +, - , / or X" 

read opr 

#echo "opr =$opr"

if [ $opr = "+" ] 

then 

    op=`expr $a + $b`

    echo "$op"

elif [ $opr = "-" ] 

then 

    op=`expr $a - $b`

    echo "$op"

elif [ $opr = "/" ] 

then 

    op=`expr $a / $b`

    echo "$op"

elif [ $opr = "X" ] 

then 

    op=`expr $a \* $b`

    echo "$op"

fi

Raghu

lifeisgreat20009

thank you very much..its working now

bash script of a simple calculator

re: bash script of a simple calculator

re: bash script of a simple calculator

re: bash script of a simple calculator

re: bash script of a simple calculator

re: bash script of a simple calculator

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