Help me to solve some question about shell Script

Shell Programming and Scripting
1
  1. Factorial calculation

Example output:

Please enter a non-negative number: 3

3! = 3 X 2 X 1
= 6
Please enter a non-negative number: 10

10! = 10 X 9 X 8 X 7 X 6 X 5 X 4 X 3 X 2 X 1
= 3628800
Please enter a non-negative number: -1

Invalid input

  • [list=1]
  • By using for loop only, write a shell script to calculate factorial like example above
  • By using while loop only, write a shell script to calculate factorial like example above
    [/list]

Thx for you help!!!:slight_smile:

2

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