langs a-z

Task/Fibonacci-sequence/UNIX-Shell/fibonacci-sequence-1.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+a=0
+b=1
+max=$1
+
+for (( n=1; "$n" <= "$max"; $((n++)) ))
+do
+  a=$(($a + $b))
+  echo "F($n): $a"
+  b=$(($a - $b))
+done

Task/Fibonacci-sequence/UNIX-Shell/fibonacci-sequence-2.sh

@@ -0,0 +1,4 @@
+fib() {
+  local n=$1
+  [ $n -lt 2 ] && echo -n $n || echo -n $(( $( fib $(( n - 1 )) ) + $( fib $(( n - 2 )) ) ))
+}