pwd-last-two

#!/usr/bin/env bash

echo -n `dirs | awk '{
        no_to_show=2

        split($0, paths, "/") # yields ["", "first-level", "second-level", ... ]
        if ( paths[1] == "~" ) {
            printf "~"
        }
        if ( length(paths) > no_to_show+1 ) {
            printf "…"
        }
        start_idx = length(paths)-no_to_show+1
        start_idx = start_idx > 1 ? start_idx : 2 # treat "/" and "/a"
        for (i=start_idx; i <= length(paths); i++) {
            printf "/" paths[i]
        }
    }'`