datedir as executable

files/mkdatedir

@@ -0,0 +1,14 @@
+#!/bin/bash
+set -e
+if [[ "$1" = "--help" ]]; then
+  echo 'Creates a dir with "%Y-%m-%d-[argument], in the current folder."'
+  echo 'Without argument, just the date is used'
+  exit
+fi
+printf -v dirbase "%(%Y-%m-%d)T" -1;
+if [[ -n "$1" ]]; then
+    dirbase="$dirbase"-"$1";
+fi;
+mkdir "$dirbase";
+echo $dirbase/
+