diff --git a/commasep-num.mrg b/commasep-num.mrg
new file mode 100644
index 0000000..8597f8c
--- /dev/null
+++ b/commasep-num.mrg
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+# REF: https://unix.stackexchange.com/questions/113795/add-thousands-separator-in-a-number
+
+function commanum () { 
+  LC_NUMERIC=en_US printf "%'.f" $1
+}
+
+# test for interactive shell / OK to echo text 
+#[ $(echo $- |grep i |wc -l) -gt 0 ] && 
+[ ! "$1" = "" ] && commanum $1
+#echo $1
\ No newline at end of file
diff --git a/failexit.mrg b/failexit.mrg
new file mode 100644
index 0000000..7a15146
--- /dev/null
+++ b/failexit.mrg
@@ -0,0 +1,6 @@
+# failexit.mrg
+function failexit () {
+  echo '! Something failed! Code: '"$1 $2" # code # (and optional description)
+  exit $1
+}
+