its_survival_guide []

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ITS Survival Guide

Here a summary of useful commands for ITS in comparison common UNIX commands.

Everywhere $ is written, it means typing Escape.

UNIX	DDT	CP
login: user	user$u	:login user
logout	$$u	:logout
TERM=vt52		:tctyp vt52
TERM=vt100		:crtsty vt100
ls	CTRL-F	:listf
ls dir	dir CTRL-F	:listf dir
ls /	CTRL-R m.f.d. (file)	:print m.f.d. (file)
ls *.foo	CTRL-R dir: second foo	:print dir: second foo
more file	CTRL-R file	:print file
mkdir dir	CTRL-R dir;..new. (udir)	:print dir;..new. (udir)
cd dir	dir$$CTRL-S	:cwd dir
cp f1 f2	$CTRL-R f1,f2	:copy f1,f2
rm file	CTRL-O file	:delete file
ln f1 f2	$CTRL-O f1,f2	:link f1,f2
mv f1 f2	$$CTRL-O f1,f2	:rename f1,f2
mv file dir	:move file,dir
emacs	emacsCTRL-K	:emacs
ps	$$v	:listj
kill pid	pid$CTRL-X	:job pid :kill
sudo -u u cmd	u$CTRL-S cmd
top	peek CTRL-H	:peek
CTRL-U	CTRL-D
CTRL-C	CTRL-G
CTRL-Z	CTRL-Z
CTRL-D	CTRL-C
fg	$P	:continue
bg	CTRL-P	:proceed

A sample MACLISP session using LEDIT MODE in EMACS ;tnx1.0e6 to GLS

KA ITS 1648 DDT 1547 TTY 52 ;System herald

    
    :login smith                              ;The luser logs in
    
    :lisp                                     ;MACLISP is started
    
    LISP 2154                                 ;MACLISP version
    ALLOC? N                                  ;Take the world defaults
    
    (plus 3.14 2.71)                          ;Add two numbers
    5.85
    
    (car '(simple list))                      ;Return the CAR of a LIST
    SIMPLE
    
    (ledit)                                   ;Enters EMACS in LEDIT MODE
    
    (defun sum-squares (a b)                  ;Typed into the EMACS buffer
           (plus (times a a
                 (times b b))))               ;META-Z pushes DEFUN to the world
                                              ;CTRL-X Z returns to LISP
    
    ;READING FROM LEDIT SUN-SQUARES           ;Back in LISP
    ;EDIT COMPLETED
    
    (sum-squares 2.0 3.0)                     ;call SUM-SQUARES
    36.0                                      ;Returns the wrong number
    
    (ledit)                                   ;Re-enter EMACS in LEDIT MODE
    
    CTRL-S (times a a                         ;Typed into EMACS
                                              ;Search for STRING (times a a
    
    (defun sum-squares (a b)                  ;Correct SUM-SQUARES
           (plus (times a a)
                 (times b b)))                ;META-Z pushes new DEFUN to world
                                              ;CTRL-X Z returns to LISP
    
    ;READING FROM LEDIT SUM-SQUARES           ;Back in LISP
    ;EDIT COMPLETED
    
    (sum-squares 2.0 3.0)                     ;Call SUM-SQUARES again
    13.0                                      ;Correct result

The LISP … Editor … LISP … loop will no doubt be repeated many times.

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