1 files changed, 18 insertions, 0 deletions
diff --git a/blind-rotate-180 b/blind-rotate-180
new file mode 100755
index 0000000..73cbd15
--- /dev/null
+++ b/blind-rotate-180
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+set -e
+
+if ! test $# = 0; then
+	if test "$1" = --; then
+		shift 1
+	fi
+	if ! test $# = 0; then
+		printf 'usage: %s\n' "$0" >&2
+		exit 1
+	fi
+fi
+
+flip="$(printf '%s\n' "$0" | sed 's/[^/]*$/blind-flip/')"
+flop="$(printf '%s\n' "$0" | sed 's/[^/]*$/blind-flop/')"
+
+"$flip" | "$flop"