1 files changed, 22 insertions, 0 deletions
diff --git a/check.rc b/check.rc
new file mode 100755
index 0000000..099bce7
--- /dev/null
+++ b/check.rc
@@ -0,0 +1,22 @@
+#!/usr/local/plan9/bin/rc
+
+fn sum {
+	find . -type f | while (file = `{read}) {
+		if (test -f $"file ) {
+			sha256 $"file
+		}
+	}
+}
+
+previous = ''
+sum | sed -E -e 's/(.*) = (.*)/\2 \1/' -e 's/SHA256 .//' -e 's/.$//' | sort | \
+	tee sum | while (line = `{read}) {
+#cat sum | while (line = `{read}) {
+	sum = `{echo $line | sed -E -e 's/([^ ]*) (.*)/\1/'}
+	file = `{echo $line | sed -E -e 's/([^ ]*) (.*)/\2/'}
+	if (~ $sum $previous) {
+		echo $"file is a duplicate.
+	}
+	
+	previous = $sum
+}