diff --git a/2021/day02.sh b/2021/day02.sh
new file mode 100755
index 0000000..7cab5c0
--- /dev/null
+++ b/2021/day02.sh
@@ -0,0 +1,50 @@
+#!/bin/bash
+move()
+{
+  if [[ $1 == "forward" ]]; then
+    pos_x=$((pos_x + $2))
+  elif [[ $1 == "up" ]]; then
+    pos_y=$((pos_y - $2))
+  else
+    pos_y=$((pos_y + $2))
+  fi;
+}
+
+move2()
+{
+  if [[ $1 == "down" ]]; then
+    aim=$((aim + $2))
+  elif [[ $1 == "up" ]]; then
+    aim=$((aim - $2))
+  else
+    pos_x=$((pos_x + $2))
+    pos_y=$((pos_y + $2*aim))
+  fi;
+}
+
+part1()
+{
+  pos_x=0
+  pos_y=0
+  aim=0
+  while read -r action valeur
+  do
+    move "$action" "$valeur"
+  done < "inputs/day02.txt"
+  echo "($pos_x, $pos_y): $((pos_x * pos_y))"
+}
+
+part2()
+{
+  pos_x=0
+  pos_y=0
+  aim=0
+  while read -r action valeur
+  do
+    move2 "$action" "$valeur"
+  done < "inputs/day02.txt"
+  echo "($pos_x, $pos_y): $((pos_x * pos_y))"
+}
+
+echo "Partie 1: $(part1)"
+echo "Partie 2: $(part2)"
diff --git a/2021/inputs/day02.txt b/2021/inputs/day02.txt
new file mode 100644
index 0000000..d8ca007
--- /dev/null
+++ b/2021/inputs/day02.txt
@@ -0,0 +1,1000 @@
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