fix: dev container script container selection

scripts/dev-containers

@@ -27,7 +27,7 @@ fi
 
 echo "
     janishutz dev containers
-"
+    "
 if [[ $(systemctl is-active docker) != "active" ]]; then
 	echo "
  -> Docker daemon not running, starting with systemctl <-
@@ -38,7 +38,7 @@ fi
 if [[ $1 == "rm" ]]; then
 	echo "
     -> Removing containers with $name in their name <-
-"
+    "
     if [[ $(read -p "Do you really want to delete ALL containers for this directory? (y/N) " response && echo $response) == 'y' ]]; then
 		for container in $(docker container ls -aq -f name=$name); do
 			docker stop $container
@@ -63,27 +63,27 @@ elif [[ $1 == "shell" ]]; then
     elif [[ $count == 1 ]]; then
         echo "
     -> Connecting to running container ${containers[0]}
-"
+        "
         docker exec -it ${containers[0]} '/bin/bash'
     else
         echo "
     -> Multiple possible containers found to attach to. Pick one (enter number)
         "
         docker ps -f name=$name
-        read -p "Enter number (1-$(${#containers[@]})) " sel
-        docker exec -it containers[$sel] '/bin/bash'
+        read -p "Enter number (1-$count) " sel
+        docker exec -it ${containers[$(($sel-1))]} '/bin/bash'
     fi
 else
 	name=$name-$1
 	if [[ $(docker container ls -aq -f name=$name) != "" ]]; then
 		echo "
     -> Starting existing container $name <-
-"
+        "
 		docker start -i $name
 	else
 		echo "
     -> Creating container $name <-
-"
+        "
 		eval "${base_path}$1-container $name $mount_path"
 	fi
 fi