Improve commenting/exit handling in binscripts

1 files changed, 12 insertions, 2 deletions

diff --git a/bin/rnda b/bin/rnda
index 99042bf6..078e5008 100755
--- a/bin/rnda
+++ b/bin/rnda
@@ -1,10 +1,20 @@
 #!/bin/sh
-# Choose a random argument using rndi(1).
+# Choose a random argument using rndi(1)
+
+# Check we have at least one argument
 if [ "$#" -eq 0 ] ; then
     printf >&2 'rnda: No args given\n'
-    exit 1
+    exit 2
 fi
+
+# Get a random seed from rnds(1); if it's empty, that's still workable
 seed=$(rnds)
+
+# Get a random integet from 1 to the number of arguments
 argi=$(rndi 1 "$#" "$seed") || exit
+
+# Shift until that argument is the first argument
 shift "$((argi-1))"
+
+# Print it
 printf '%s\n' "$1"