Split paths into each components

explode-path.sh

#!/bin/bash

# Example:
# $ explode-path ~
# /
# /Users
# /Users/seb

# Great for recursively checking permissions

# One-liner:
# ls -1d ~ | while read p; do d="$p"; while true; do echo $d; [[ "$d" = "/" ]] && break; d="$(dirname "$d")"; done; done | sort | uniq | xargs ls -ld
# drwxr-xr-x   33 root  wheel  1056 Jan 30 15:27 /
# drwxr-xr-x    5 root  admin   160 Sep 25 17:38 /Users
# drwxr-xr-x+ 100 seb   staff  3200 Feb  1 09:01 /Users/seb

ls -1d "$@" \
    | while read p; do
        d="$p"
        while true; do
            echo "$d"
            [[ "$d" = "/" ]] && break
            d="$(dirname "$d")"
        done
    done \
| sort | uniq