+ day 2, part 1

02/meow.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+
+# a, x - rock 1
+# b, y - paper 2
+# c, z - scissors 3
+
+function normaliz() {
+	[[ $1 =~ [AX] ]] && echo 1
+	[[ $1 =~ [BY] ]] && echo 2
+	[[ $1 =~ [CZ] ]] && echo 3
+}
+
+score=0
+
+while read line; do
+	you=$(normaliz ${line/* /})
+	opp=$(normaliz ${line/ */})
+
+	if [[ "$you" == "$opp" ]]; then	
+		score=$((score+3))
+	elif [[ "$you" == 1 && "$opp" == 3 ]]; then
+		score=$((score+6))
+	elif [[ "$you" == 2 && "$opp" == 1 ]]; then
+		score=$((score+6))
+	elif [[ "$you" == 3 && "$opp" == 2 ]]; then
+		score=$((score+6))
+	fi
+	score=$((score+you))
+done
+
+echo "$score"