contents of directory: unix_tutorial


    type         date         name
    ----    ---------------   ------------------------

    dir     2023.10.18.1202   basic
    dir     2023.10.18.1202   basic_unix
    dir     2023.10.18.1202   _images
    dir     2023.10.18.1202   inter_unix
    dir     2023.10.18.1202   misc
    file    2023.09.12.1205   objects.inv
    dir     2023.10.18.1202   old
    file    2023.09.12.1205   search.html
    file    2023.09.12.1205   searchindex.js
    dir     2023.10.18.1202   _sources
    dir     2023.10.18.1202   _static