Added missing runall script

SNAP/runall

@@ -0,0 +1,39 @@
+#!/bin/sh
+
+usage () {
+  echo "Usage: ${0#*/} [DIRECTORY]..."
+  echo "Run all executable scripts in one or more directories"
+
+  exit $1
+  }
+
+ERRORS=
+
+if [ -z "$1" ]; then
+  usage 2
+fi
+
+for dir in "$@"; do
+  dir=${dir%/}
+  if [ ! -d "$dir" ]; then
+    echo "$dir: invalid directory"
+
+    usage 2
+  fi
+
+  for file in "$dir"/*; do
+    if [ -x "$file" ]; then
+      "$file"
+
+      if [ "$?" -gt 0 ]; then
+        ERRORS="$ERRORS $file"
+      fi
+    fi
+  done
+done
+
+if [ -n "$ERRORS" ]; then
+  echo "There were errors in the following scripts:$ERRORS"
+
+  exit 1
+fi