(@ ls-al path .file-name +-
    (# fs FS_TMP .temp-file)
    (# ext (%
               'ls.exe'  .name
               (' '-al') .parameters
               path      .workdir
               temp-file .redirect
           )
    )
    ([FILE_EXISTS] temp-file >
        (temp-file .file-name)
    >
        \\ ERR_NO_FILE
    )
)