Another update from ingydotnet^djgoku

Task/Pascals-triangle/UNIX-Shell/pascals-triangle.sh

@@ -0,0 +1,18 @@
+#! /bin/bash
+pascal() {
+    local -i n=${1:-1}
+    if (( n <= 1 )); then
+        echo 1
+    else
+        local output=$( $FUNCNAME $((n - 1)) )
+        set -- $( tail -n 1 <<<"$output" )   # previous row
+        echo "$output"
+        printf "1 "
+        while [[ -n $1 ]]; do
+            printf "%d " $(( $1 + ${2:-0} ))
+            shift
+        done
+        echo
+    fi
+}
+pascal "$1"