Intro -
   line-by-line command entry or GUI's: X-Windows, etc
   filenames, 255 char max
   dir structure, inverted tree
   permissions on files and directories
   Unix Pit - toon:  991214a


Unix command format -
   cmd-name  options  filename-s
   each item separated by one or more spaces
   quote items containing spaces & special char:  "..."
   quote the cmd-name to get the non-alias version:  "cmd-name"
   options ex:  -p -i   can usually be combined into -pi, but not always (ex: pico)


Basic commands -
   cp  mv  rm  dir      mv = both move and rename
   illustrate some options:  cp -p,  mv -i
   man for command options, ex: man cp


.profile available
   test drive, give twice:  . ~rspatema/.profile
   installing, give:
      mv .profile .profile2
      cp ~rspatema/.profile ~/
      logoff, logon
   features of, see SysNote-nn
   internal doc, esp for customization using .profile2
   opt:  softlinks and .profile in several accounts
   opt:  suspend, fg vs. bg, suspend on a pipeline and fg the roadblocker


Unix cmd demo -
   create http subdir, set permissions, create file (pico), edit, copy file, copy dir
   backup with cpdir, remove with rm, rmdir


Shells & Korn shell -
   what is a shell;  Korn shell (ksh) is common on at NEIU
   shell executed commands vs. external commands
   opt:  history of shells,  sh (bourne), csh, ksh, bash & new sh, zsh + others (Linux)
   opt:  why cmd names & options crypt, why usually no cmd output when no error occured
   opt:  lack of cmd option consistency (ex: sort has -f, but ls does not)


Features of shell for simplifications -
   ~ notation (~, ~username) and directory structure
   aliases & functions - check for existing name before defining new one
   cmd line interpretation (see page from Rosenblatt: Learning the Korn Shell)
   "" vs '', subtle distinctions
   shell pgm, subtle, hard, poor error msgs, but v. powerful


NEIU machines and network -
   gamut v. orion v. mailhub v. yoda
   RAS + dialin, LAN connections - broadband path
   proviso:  silent hardware/software changes (ex: Unix op. sys. upgrade)


Presenter/MS-Telnet: Telnet clients -
   Icon to start telnet session w/hostname on cmd line
   Configuration of Presenter (Novell, LAN only), MS-Telnet, SimpTerm, etc
   Window size - telnet client vs. what Unix sends; diagram this
   Mouse use in window, to copy and paste, use of Edit on Menu


Refs -
   Unix Biblio
   Tru64 doc:  www.unix.digital.com/faqs/publications/pub_page/doc_list.html