Add helper scripts to run all other get_data scripts for layers

data/get_all_data.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+cd $(dirname $0)
+
+find ../ -name "get_data.*" \! -executable | grep . >/dev/null \
+    && echo "Non-executable files found; consider running:" \
+    && find ../ -name "get_data.*" \! -executable -exec echo chmod +x {} \; \
+    && exit 1
+
+find ../ -name "get_data.*" -executable -exec sh -c "echo processing {}; {} | sed --unbuffered 's/^/    /'" \;