cowsayeternal: Improve logging and printing

cowsayeternal

@@ -1,16 +1,24 @@
 #!/bin/bash
 cowsaidfile="$(mktemp)"
+printf "Writing cows to temporary file \"%s\"\\n" \
+	"$cowsaidfile"
 cowsay "E T E R N A L" > "$cowsaidfile"
 trap_exit() {
+	printf "\\n"
 	cat "$cowsaidfile"
 	rm "$cowsaidfile"
 }
 trap trap_exit EXIT
+iterations=1
 while true; do
 	# Shut up shellcheck; that's the whole point. cowsay does a full read
 	# before it writes back to the file anyway.
 	# shellcheck disable=2094
 	cowsay -n < "$cowsaidfile" 1<> "$cowsaidfile"
-	printf "%s bytes of cowsay; hit Ctrl+C to dump them\\n" \
+	iterations=$(( iterations + 1 ))
+	# This line will only ever grow larger, so we don't need to clear it
+	# before overwriting it.
+	printf "\\r%s iterations, %s bytes of cowsay; hit Ctrl+C to dump them" \
+		"$iterations" \
 		"$(stat --printf="%s" "$cowsaidfile")"
 done