shell: split exports, reorg them. add x-dc script

local/bin/x-dc

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+# Verify folder exists, and if it does not, create it.
+
+dir="$1"
+ 
+[ $# -eq 0 ] && { echo "Usage: $0 full/path/to/dir/to/create"; exit 1; }
+ 
+if [ ! -d "$dir" ]; then
+  mkdir -p "$dir" && exit 0;
+fi
+