7 lines
130 B
Bash
7 lines
130 B
Bash
factorial() {
|
|
set -- "$1" 1
|
|
until test "$1" -lt 2; do
|
|
set -- "`expr "$1" - 1`" "`expr "$2" \* "$1"`"
|
|
done
|
|
echo "$2"
|
|
}
|