#!/bin/bash
# Aug/6/ 2011
#scritp for addition mul sub
#you can run this script using bash
#echo are used to display string on terminal or screen
echo -n "Enter No 1:-"
read no1
echo -n "Enter No 2:-"
read no2
echo " "
# expr another way is $[ 1 + 3 ] this stmt work in bash shell not dash shell specially in ubuntu
# u can rewrite below statment ans=$[ $no1 + $no2 ]
ans=`expr $no1 + $no2`
echo "Addition is:= $ans"
ans=`expr $no1 - $no2`
echo "Sub is:= $ans"
ans=`expr $no1 \* $no2`
echo "Mul is := $ans"
# in division u can use `expr $no1 / $no2` but you did't get floating point value
# bash means bourn again shell did't support floating point value
# bc command are used to calculate the division operation bc means basic calculator
# here | means echo command value are used as input in bc command means
#output of echo cmmand are passed in bc command
# scale are used to provide total no of digit after fraction point
# use 'man bc' for more info use bc command in terminal u can exit from bc command using ctr+d or ctr+c
ans=`echo "scale=4; $no1 / $no2" | bc`
echo "Division is:=$ans"
# Aug/6/ 2011
#scritp for addition mul sub
#you can run this script using bash
#echo are used to display string on terminal or screen
echo -n "Enter No 1:-"
read no1
echo -n "Enter No 2:-"
read no2
echo " "
# expr another way is $[ 1 + 3 ] this stmt work in bash shell not dash shell specially in ubuntu
# u can rewrite below statment ans=$[ $no1 + $no2 ]
ans=`expr $no1 + $no2`
echo "Addition is:= $ans"
ans=`expr $no1 - $no2`
echo "Sub is:= $ans"
ans=`expr $no1 \* $no2`
echo "Mul is := $ans"
# in division u can use `expr $no1 / $no2` but you did't get floating point value
# bash means bourn again shell did't support floating point value
# bc command are used to calculate the division operation bc means basic calculator
# here | means echo command value are used as input in bc command means
#output of echo cmmand are passed in bc command
# scale are used to provide total no of digit after fraction point
# use 'man bc' for more info use bc command in terminal u can exit from bc command using ctr+d or ctr+c
ans=`echo "scale=4; $no1 / $no2" | bc`
echo "Division is:=$ans"