shell program to check whether the given number is even or not

/*    evenodd.sh  */

echo "enter your number"
read num
m=`expr $num % 2
if [ m-eq 0 ]
 then
    echo "given number is even number"
  else
   echo "given number is odd number"
fi


/home/anil/~$ sh evenodd.sh
  enter your number
  25
   given number is odd




Note: if is a conditional statement in UNIX same like c programming but little bit equivalent changes.

if [ condition ]
then
     display statements
fi



every if followed by then and ends with fi


gt    - greater then
lt     -less then
le    -less then or equal
ge   -greater then or equal
ne   - not equal
eq     equal



if else condition works same like in other programming languages.

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