| # Who said shells can't use recursion? Here is a factorial function. | |
| # You call it with a number as an argument, and it returns the factorial | |
| # of that number. | |
| fact () | |
| { | |
| local num=$1; | |
| if [ "$num" = 1 ] ; then | |
| echo 1 | |
| return ; | |
| fi; | |
| echo $(( $num * $(fact $(( $num - 1 )) ) )) | |
| } |