Files
oldlinux-files/bin/old/bash-1.11/examples/functions/fact
2024-02-19 00:21:52 -05:00

14 lines
303 B
Plaintext

# 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 ])]
}