diff --git a/.local/bin/path b/.local/bin/path
new file mode 100755
index 0000000..e5b6e02
--- /dev/null
+++ b/.local/bin/path
@@ -0,0 +1,33 @@
+#!/bin/sh
+# POSIX-compliant shell script to print the PATH contents line by line,
+# without duplicated, in order, without empty lines.
+
+__arrvar="__arr_random_n8241vn81y39c"
+
+in_list () {
+	max_idx="$(($1))"
+	arg="$2"
+	[ "$max_idx" -ge 1 ] || return 1
+	[ -n "$arg" ] || return 2
+	idx_in_list=0
+	while [ "$idx_in_list" -le "$max_idx" ]; do
+		val="$(eval "printf %s "'"'"\$${__arrvar}_$idx_in_list"'"')"
+		[ "$val" = "$arg" ] && return 0
+		idx_in_list="$((idx_in_list+1))"
+	done
+	return 1
+}
+
+idx=0
+printf "%s\n" "$PATH" | sed "s/^:\+//; s/:\+$//; s/:\+/\n/g" | while IFS= read -r line; do
+	eval "unset ${__arrvar}_$idx"
+	idx="$((idx+1))"
+done
+
+idx=0
+printf "%s\n" "$PATH" | sed "s/^:\+//; s/:\+$//; s/:\+/\n/g" | while IFS= read -r line; do
+	in_list "$idx" "$line" && continue
+	printf "%s\n" "$line"
+	eval "${__arrvar}_$idx=\$line"
+	idx="$((idx+1))"
+done