diff --git a/bin/randomhex b/bin/randomhex
new file mode 100755
index 0000000..7d9d38e
--- /dev/null
+++ b/bin/randomhex
@@ -0,0 +1,8 @@
+#!/bin/bash
+if [ -e $1 ]; then
+  NUMBERCHARS=42
+else
+  NUMBERCHARS=$1
+fi
+
+cat /dev/urandom | tr -cd 'a-f0-9' | head -c $NUMBERCHARS ; echo