1 files changed, 19 insertions, 0 deletions
diff --git a/sh/dirnameall b/sh/dirnameall
new file mode 100755
index 0000000..befd347
--- /dev/null
+++ b/sh/dirnameall
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+while read -r line; do
+	if [ "$paths" ]; then
+		paths="$paths
+$line"
+	else
+		paths="$line"
+	fi
+done
+
+dirs="$paths"
+while [ "$dirs" != '.' ]; do
+	[ "$dirs" ] && paths="$paths
+$dirs"
+	dirs="$(echo "$dirs" | tr '\n' '\0' | xargs -0 dirname | awk '!a[$0]++')"
+done
+
+echo "$paths" | awk '!a[$0]++' | grep -v '^\.$'