home/xyz/.local/bin/dirnameall


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#!/bin/sh

while read -r line; do
	if [ -n "$paths" ]; then
		paths="$paths
$line"
	else
		paths="$line"
	fi
done

dirs="$paths"
while [ "$dirs" != '.' ]; do
	[ -n "$dirs" ] && paths="$paths
$dirs"
	dirs="$(echo "$dirs" | tr '\n' '\0' | xargs -0 dirname | awk '!a[$0]++')"
done

echo "$paths" | awk '!a[$0]++' | grep -v '^\.$'