Write a shell script to check if a number is even or odd, if number is even calculate factorial of a number n otherwise find value of z, where z=1/2+2/3+3/4+. .+n/n+1. [Factorial of a number example:...

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Extracted text: Write a shell script to check if a number is even or odd, if number is even calculate factorial of a number n otherwise find value of z, where z=1/2+2/3+3/4+. .+n/n+1. [Factorial of a number example: 5!=5*4*3*2*1]