mirror of
https://git.FreeBSD.org/ports.git
synced 2024-12-14 03:10:47 +00:00
…
|
||
---|---|---|
.. | ||
its-user-install.sh | ||
its.sh | ||
klh10-kn-freebsd.ini.in | ||
MIT-ITS-papers | ||
README.FIRST |
Consider adding firewall protection for the KLH-10 emulator before ever running it. See @PREFIX@/share/doc/its/pubits/adm directory for samples. To setup the emulator you must run the its-user-install(1) command. It takes no arguments. It is best to run it as a regular (non-root) user. Once that has been done to start ITS run the its(1) command. It also takes no arguments. The first time the ITS boots it will not know the time of day. ITS will display this message: The time could not be set because: No host responded. It will be necessary for someone to set the time manually by logging in and running :PDSET. Tell ITS to activate the apex procedure, DDT, by typing a Ctrl-Z. When you type that you will see: KN ITS.1647. DDT.1545. TTY 0 You're all alone, Fair share = 0% (ITS does not know the date, so messages cannot be reviewed right now.) Then run PDSET by typing (colon and all) :pdset ITS will suggest that you log in but you don't have to. (Please Log In) ___002 PDSET IOTLSR Now enter the time and save it. First the century: 20C Next the YYMMDD: 020219D Then the HHMMSS (try to time it so you have some lead time because it will become active when you save it.) 235115T Now save the time: !. Now exit PDSET X You will have no feedback from the exit operation except that new commands will be echoed in lower case. Now bring down ITS so you can start it without being root: :lock (Please Log In) LOCK.154 _ the _ is a prompt, do not type it. Type 5down LOCK is very picky about typos so be careful. It does not need the Enter key so don't use it. DO YOU REALLY WANT THE SYSTEM TO GO DOWN? Type "y" y ___004 PLEASE ENTER A BRIEF MESSAGE TO USERS, ENDED BY ^C LOCK SYS DOWN MAIL WRITE 21:13:17 Just type Ctrl-C for the message unless you have a burning desire to talk to yourself via ITS. KN ITS going down in 5:00 CULPRIT = ___004 LOCK 21:13:38 _ KN ITS 1647 NOT IN OPERATION 21:13:38 PFTHMG DRAGON CHANNA _DRGN_ TIMES WRITE 21:13:38 PFTHMG DRAGON CHANNA LOGOUT TIMES DELRNM 21:13:38 After the "NOT IN OPERATION" message only very special programs like the accounting dragon, PFTHMG DRAGON, may run. Be patient and it will finish with: SHUTDOWN COMPLETE PI LEVEL 7 BUGDDT. TYPE <ALTMODE>P TO CONTINUE. YOU ARE NOW IN DDT. BUGPC/ CAIA COFFI4+1 $Q-2/ JRST COFFI7 If ITS gets stuck shutting down for more than five minutes just continue from here: At this point type Ctrl-\ to abort KLH10 back to the monitor. [HALTED: FE interrupt] KLH10> and quit KLH10 KLH10> quit Are you sure you want to quit? [Confirm]y Shutting down...Bye! $ ITS uses DEL for erasing characters. ITS defaults to dumb hardcopy terminal settings. This is a pain so you want to configure ITS to use something nicer. ITS knows about VT52. If you are using xterm from XFree86 you can get into VT52 mode by running a script like this: #! /bin/sh awk 'END {printf "%c[?2l", 27}' </dev/null From ITS run :tctyp vt52 On your VT52 mode terminal emulator. An alternative is that you can use vt100 mode via the CRTSTY program which is a bit like window(1) in that you end up on something like a pty but only one full screen window is available and it does terminal emulation on it. You will be automatically logged in a second time on the same terminal as a crufty side-effect. :crtsty vt100 speed 9600 Run :info and look at the introductory information about the filesystem. I did not find that it covers directory operations very well so here is what I have found out. ITS does have a process tree (try the PEEK command) but does not have a directory tree. There is a Master File Directory MFD (try DSKUSE * or DIRED and then MFD. Use "Q" to quit after either of those.) and User File Directories UFDs one level deep only. The only way to remove a directory is to delete its contents and run the salvager. The salvager is the ITS equivalent of fsck and will automatically be run at boot time. To create a new directory provide certain options to the open UUO (ITS equivalent of system call; try the DOC UUO command.) Since the PRINT command calls the open UUO you can create a directory using print: :print ..new. (udir) dirnam; Where dirnam; is the name of the directory to be created. Directory names are limited to six characters. Missing from this ITS distribution is the INQUIR database. It contains user information. There were too many personal details in it and no one has been able to scrub it so it was left out. This means you cannot have a complete user account yet. The best you can do is to pick a user name and make yourself a directory with that name and put a login script in it. In this example the user "user" is created: :login user :print ..new. (udir) user; :emacs login user [add startup code like ":tctyp vt52" and ^X^S to save ^X^C to exit] You log out with <ALTMODE><ALTMODE>u which is [Esc][Esc]u and represented in the documentation as $$u The ITS equivalent of $PATH is implemented by scanning all directories for files for files with TS as the first name and the second name set to the command you issued. By convention most commands are in the SYS; SYS1; ... SYSN; directories. ITS supports symlinks via the LINK command and TS name is often a symlink. ITS equivalent of job control works by typing ^Z to interrupt the current program. To get back to the DDT prompt "*" use $^K Don't like DDT as the shell? Try MONMOD to use monitor mode where the colon is printed for you. DDTMOD gets you back. Or try SHELL to bring up a UNIX-like shell. Zork was developed in MDL (muddle) on an ITS system but apparently it suffered from being too popular. Try the ZORK command to see what happened. A scrap of MDL source code is left (:find @muddle) but I don't know how to MIDAS it.