adapted dir structure

capture

@@ -1,12 +1,10 @@
 #!/bin/bash
 
 # set working dir to script's base dir
-cd ${0%/*}
+cd "$( dirname "${BASH_SOURCE[0]}" )"
 
-DATE=$(date +"%Y-%m-%d_%H%M%S")
+slide_path="./slides/$(date +"%Y-%m-%d")/$(date +"%H.%M.%S").jpg"
 
-dir_path="./slides/`date -I`"
+mkdir -p "$(dirname "$slide_path")"
 
-mkdir -p $dir_path
-
-raspistill -vf -hf -o "$dir_path/$DATE.jpg"
+raspistill -vf -hf -o "$slide_path"