+ day 2

2_1.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+a=0
+b=0
+
+function num() {
+	echo $2 # could have used awk, but this works ;p
+}
+
+while read line; do
+	x=$(num $line)
+	if [[ "$line" == "forward"* ]]; then
+		a=$((a+x))
+	elif [[ "$line" == "up"* ]]; then
+		b=$((b-x))
+	elif [[ "$line" == "down"* ]]; then
+		b=$((b+x))
+	fi
+done
+
+
+echo $((b*a))

2_2.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+a=0
+c=0
+aim=0
+
+function num() {
+	echo $2 # could have used awk, but this works ;p
+}
+
+while read line; do
+	x=$(num $line)
+	if [[ "$line" == "forward"* ]]; then
+		a=$((a+x))
+		c=$((c+aim*x))
+	elif [[ "$line" == "up"* ]]; then
+		aim=$((aim-x))
+	elif [[ "$line" == "down"* ]]; then
+		aim=$((aim+x))
+	fi
+done
+
+echo $((c*a))