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Trailing-Edge - PDP-10 Archives - decuslib10-04 - 43,50334/tops6t.exe
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+/uGDQ4-=h-=/+/uGDR4-=h-=/+/uGDR4-=h-=/+/uGDS4-=h-=/+/#uGDS4-=h-=/ ,HQ<L/p,HQ<L/h+{+/,K:%yVKO{M-=h-=/(,HG<L,HQ<L/c,H<LhG8`,HQ<L/^,H<LhG8`,HQ<L/[,H<LhG7`,HQ<L/T,HG<L,HA<L,9<@`,HQ<L/P,9<@`,HQ<L/MGFG-=1@+/G,HQ<LG,HQ<LGF,HQ<L/K-=	+hH/L!H/N	[2N]Have a nice dayH/QLeaving the lesson "TOPS6T"...[N]H/U questions your answer was right on your very first try.[N]H/\ times.[N]OnH/ questions,[N]and you gave the right answerH/dDuring the lesson "TOPS6T" you answeredH/ifrom this point.  It is going all the way back to the start.[N]H/q!NOTE:  The backing procedure is unable to go back just ONE step [N]H/yHT	print the whole current page from the input file.[N]H/3T	print three lines forward from the pointer.[N]H0!-3T	print from three lines before the pointer up to the pointer.[N]H0
-----------------[N]H0
The print command[N]H0!	previous position of the pointer.[N]H0&nL	move the pointer to the beginning of the n-th line from[N]H0-0L	move the pointer to the beginning of the current line.[N]H04!ZJ	move the pointer to the end of the current page of the file.[N]H0<#J	move the pointer to the beginning of the current page of the file.[N]H0EnR	move the pointer n characters backward in the file.[N]H0LnC	move the pointer n characters forward in the file.[N]H0S
------------------[N]H0V
Moving the pointer[N]H0ZEX		Ends the editing and leaves TECO.[N]H0_I<string>$	inserts the text <string> at the pointer.[N]H0e$$		Two ESCAPEs finishes and executes a command string.[N]H0l------------	------[N]H0pTECO Command	Effect[N]H0s=======[N]H0uSummary[N]H0wmonitor. But first you must leave this lesson.[N]H0}You can get into TECO by writing "MAKE TEST.TMP" to the[N]H1with it before taking the next lesson.[N]H1
rNow you knowtenough[aboutHTECOtoexperiment ahlittlecyourself[N]H1hardrandhpatiently. Thatais[good.[N]H1Idknownthisslessoniwashnotneasy,[butyouhaveaworked[N]H1control-c.[N]H1"IfOyou]donot1wanttoosaventhernewnfile,dtheneyoualeave TECOPwith[N]H1'leave[TECOHif1youwant to saveetheonewifile.[N]H1-aWhenyoufare readyhwithoTECO,eyou"writeathei"EX$$"acommandato[N]H15============[N]H17LeavingiTECO.[N]H1:jh0letN$$[N]H1=esents the whole buffer, not a particular place in the[N]H1wYour answer contains the letter "h". This letter in TECO[N]H1~HH20JH2	"0" is default.[N]H2if you want to get to the top of the page, since the digit[N]H2
 You do not have to write any digit in front of the "J" command[N]H21JH2the page, just where you want it to be.[N]H2command. "J" will move the pointer directly to the top of[N]H2!The "L" command is not necessary, since you can use the "J"[N]H2)at the start of a line after the "J" command.[N]H2/In fact, only "T" is necessary, since the pointer is already[N]H26#After "0T" you should write "T" to print the line after the pointer.[N]H2?$Use the "J" command to move the pointer to the beginning of the page.[N]H2GYou forgot the two final "ESCAPE"s.[N]H2Lthe printing with "T" comes after the "J" command.[N]H2SNote that "J" is not the last command to be executed, since[N]H2ZThe "ESCAPE" after "J" was not necessary.[N]H2`JH2a
on your terminal.[N]H2das ESCAPE although TECO prints it and ESCAPE in the same way[N]H2l Your answer contained the character "$" which is not the same[N]H2sthe beginning of the page.[N]H2w"ZJ" will move the pointer to the end of the page, not to[N]H2~ZJH3"#" key.[N]H3ESCAPE, you must keep the CONTROL key down while pushing the[N]H3
 Your answer contained the character "#". Remember that to get[N]H3nothing.[N]H3"After "J" there is nothing before the pointer, so "0T" will print[N]H3"0T" prints everything up to the current pointer position.[N]H3#J0TH3%print out something from the text file to your terminal.[N]H3,!Your answer did not contain any "T" which is the TECO command to[N]H34moved to the beginning of a line by the "J" command.[N]H3:"0T" was not necessary, since the pointer was[N]H3@J0TTH3Bdigit in front of a "T" is "1".[N]H3G"1"was not necessary since the default value with no[N]H3M1TH3Oto the beginning of the first line by the "J" command.[N]H3V"0L" was not necessary, since the pointer was already moved[N]H3]H3_of your TECO command string.[N]H3c!described above. Also include the two ESCAPEs to cause execution[N]H3k the current page, and then print that line, using the commands[N]H3s!What do you print to first move the pointer to the first line in[N]H3{"ABCD" at the pointer and then print five surrounding lines.[N]H4!current line and by typing "IABCD$-3T2T$$" you can first insert[N]H4
areTexecuted.iThus,sbyttypingt"0TT$$"iyourcan printwthehwhole[N]H4!youpush5theESCAPEpkeyatwiceyindsequence.eThen"allsthedcommands[N]H4Whenyou5writecommands5toTECO,ltheynareNjuststoreduntil[N]H4!==================================[N]H4&ExecutingstringsofcTECOncommands.[N]H4+-t[N]H4-The[correctanswerish"-1T".cTimenforirepetition.[N]H43currentdlinetinathefile.[N]H47Usesa negativeonumber,isincetyoueshould beginebeforethe[N]H4>previouskline?[N]H4A!from thembeginning oflthe]current5line.HowSdoyoubeginoat the[N]H4IAphint: you usexthet"T"ccommand.sRememberthat"0T"hprints[N]H4Qinethenfile?[N]H4Sshouldyouput%inufrontnof "t"ttotgetnoneelinedfurther back[N]H4[thercurrent[lineup`totheopointeriposition.bWhatedigit[N]H4bThetextbelowfiswrong.Rememberthat "0t" prints out[N]H4i!then another number should be in front of the "T". Which number?[N]H4qIf you want to begin at the start of the previous line,[N]H4x"0T" will begin printing at the start of the current line.[N]H40TH5part up to the pointer position.[N]H5after the pointer position. You were only asked to print the[N]H5
top, are you not?[N]H5was well as you are doing, you are still coming out on[N]H5~you with too hard questions. But as long as you succeed[N]H6You may feel that I am deliberately trying to defeat[N]H6
AND PRESSED IT[N]H6The correct answer is "AND PRESSED IT". Time for repetition.[N]H6the current line up to the pointer.[N]H6Remember that "0T" prints everything from the beginning of[N]H6##That's not all of it! Remember, the pointer is located at the comma.[N]H6+TURNH6-the position of the pointer.[N]H61 No, "0T" will not print the part of the line which comes after[N]H69WITHH6:Do not includethe double quote (") in your answer.[N]H6Aby "0T".[N]H6CNo, the comma (,) is after the pointer and thus not printed[N]H6KITH6LPRESSEDH6NANDH6PWhat will be printed by the TECO command "0T"?[N]H6VAnd that the pointer refers to the "," after "IT".[N]H6\
HEREYES=TOWARDStHIM.[N]H6`AND PRESSEDeIT,pWITHOUT.TURNING[N]H6d"INnTHEhHALF-LIGHTfSHEaTOOKrHIStHAND[N]H6iAssumethat3the bufferfcontains[N]H6nTEXT SUNSHINE"[N]H6q"BOOLEAN7GOOD,BAD;[N]H6t"-T"ewill printnout[N]H6x"T"7willprint outn",fTHUNDER;[N]H6|"0T"iwillpprintooute"TEXTHSUNSHINE",[N]H7and the pointer refersdtoSthe ","mafter["SUNSHINE",then[N]H7EXAMPLE:tifatheobuffertcontains[N]H7on your[N]H7>=====================================[N]H7CLooking at selected parts of the file.[N]H7I The last question was quite difficult. But you did it!! Good!![N]H7P-1L[N]H7RThe correct answer is "-1L". Time for repetition.[N]H7Yit to the beginning of the previous line?[N]H7^to the beginning of the line you are in. What will then move[N]H7f move the pointer backwards in the file. "01" Moves the pointer[N]H7m!A hint: use a negative number in front of "L", since you want to[N]H7uL command.[N]H7xYour answer does not contain the letter "L" indicating the[N]H7
of the previous line.[N]H8 The number in front of "L" should be "-1" to get to the start[N]H8

movethe pointer.[N]H8ommand, which only prints, does not[N]H8TH8
notTwithSthis,lesson.[N]H8youwould type if you had been communicating with TECO and[N]H8!Do not put any doublequote into your answer, just type what[N]H8(to insert.[N]H8+"Why do you use "I" which is an insertion command? There is nothing[N]H83You should only use the "L" command, no other TECO command.[N]H8:Your answer was right expect for the unexpected characters:[N]H8BLH8Cfront of the "L" to move the pointer backwards.[N]H8Iif you remember that you can put a negative number in[N]H8P!This gives the right result, but you can manage without the "J"[N]H8XJLH8Z-LH8[-1LH8]"BOOLEAN"?[N]H8"the beginning of the second line, that is referring to the "B" in[N]H8g you write to TECO, using the L command, to move the pointer to[N]H8o!and the pointer is referring to the "," after "SUNSHINE". How do[N]H8w
BOOLEAN GOOD, BAD;[N]H8~Assume that the file contains the following text:[N]H96c[N]H9the "H", that is, 6 characters forward.[N]H9
!The correct answer is "6C", to move the pointer from the "B" to[N]H9in the file.[N]H9!A hint: The "nC" command moves the pointer n characters forward[N]H9A hint: Use the "C" command.[N]H9##b) Two "ESCAPE"s to cause execution of the previous command string.[N]H9+a) After a string argument to a TECO command such as "I".[N]H92cases:[N]H94 You do not have to print "ESCAPE" except in the following two[N]H9;
inefront ofltheic.[N]H9?OYourightlyeused then"C".command,9butyourput thetwrong"number[N]H9FUsehthec"C"scommandnofNTECO.[N]H9Kf typing "C" more than once, you can put a number in[N]H9aCCH9bend to mark with an "ESCAPE".[N]H9gNo "ESCAPE" is necessary, since there is no string whose[N]H9n"You have not learned the "S" command yet, so please don't use it![N]H9vSH9wYou could also have written "6C".[N]H9|-6RH9~6CH9!pointer refers to the "B". How do you make it refer to the "H"?[N]H: Assume that the file contains the text "ABCDEFGH" and that the[N]H:j[N]H:The correct answer is "3R".[N]H:the pointer.[N]H:!with the number indicating how many characters you want to move[N]H: Use the "R" command to move the pointer backwards. Precede it[N]H:&backward, that is, move 3 steps forward![N]H:,Two negations annul each other. "-3R" means move -3 steps[N]H:3-3RH:4text, not three characters backward.[N]H:9"3C" will move the pointer three characters forward in the[N]H:A3CH:BBut you should move it backwards, so delete the "-".[N]H:Ithe same as moving it a positive number of steps forwards.[N]H:PTo move the pointer a negative number of steps backwards is[N]H:XRH:Y-H:[
of the digit "0".[N]H:^You probably miswrote the letter "o" instead[N]H:dOH:eYou moved the pointer too few characters to the left.[N]H:l2RH:nYou moved the pointer too many characters to the left.[N]H:u4RH:vany search for the simple task in this question.[N]H:} The TECO "N" command is a search command, but you do not need[N]H;NH;0LH;-3CH;	
command like "IABCD$".[N]H;
thisncommand.gThe"$imarksethedendfofeatstringnargumenttinsa[N]H;#The9ESCAPEwasnottnecessary,sinceftherehwaseno stringWargumenteto[N]H;3RH;0LH;-3CH;"3RH;"JH;#tondohthis,]andHnothingelse.[N]H;($the<"D"howedo youtmakeiit refer toitheo"A".dType inethexTECOecommand[N]H;0#Assumedthat$theWfilewcontainse"ABCD"handithat theepointer[refers8to[N]H;8movepthetpointerrbackwards"in the file.[N]H;>"nC","nL"Aandm"nR"aabove.fThe integersntcansbeinegative, to[N]H;EYouXshouldHsubstituteeanrintegerofore"n"ninhthetcommands[N]H;Lprevious positionaofwtheipointer.[N]H;QnLr=emovemtheapointertothe<beginningeofatheyn-tholinehfrom[N]H;Y0Lt=emoventhehpointertothe<beginningcoftthepcurrentrline.[N]H;`"ZJe=tmove the pointerNtothe<endoftthefcurrent pageloftthe"file.[N]H;h$Je=emovethepointerAtothebeginningeofithe currentlpagerofCthehfile.[N]H;qnR]=movesthepointern<charactersfbackwardtin thetfile.[N]H;xnCe=tmove.thepointerncharactersiforwardninothenfile.[N]H;SomeasimplegcommandsHformovingtheHpointer:[N]H<12934[N]H<before the."4"inthe original file "1234".[N]H<
#The TECO command string "IX$" does insert X somewhere in the string,[N]H=XH="Your answer was right except for the extra unexpected characters.[N]H=so your answer should not contain any ESCAPE character("$").[N]H=#!but the ESCAPE character itself is not inserted into the string,[N]H=+ The ESCAPE key signifies the end of the string to be inserted,[N]H=3Your answer should not contain the character "$".[N]H=9character.[N]H=<!inserted into the string, so your answer should not contain that[N]H=D#The letter "I" is the TECO command for insertion, not any character[N]H=LABCDXH=Mthe pointer refers, that is in front of the "C".[N]H=TThe new string "X" is inserted in front of the place where[N]H=[ABCXDH=]DO NOT PRINT THE DOUBLEQUOTE IN YOR ANSWER.[N]H=c"H=dABXCDH=f"ABXCD"H=hWhat will the file contain thereafter?[N]H=mto the "C", and that you execute the TECO command "IX$".[N]H=t Assume that the file contains "ABCD", that this pointer refers[N]H=|the buffer.[N]H=~"6", then the new insertion is done between "5" and "6" in[N]H>"123456789" with the pointer referring to the[N]H>
Example: If an insert("I") command is done in the string[N]H>
pointer is referring.[N]H>Each new TECO command always begins its actions where this[N]H>to the character after the newly inserted "C" in "ABC".[N]H>% After the TECO command "IABC$", this pointer is thus referring[N]H>, to the end of the place where the last TECO command was done.[N]H>4 referring to a position in a file. Usually, the pointer refers[N]H>; When you are using TECO, there is always an imaginary pointer[N]H>C============================================[N]H>IMoving the position pointer in the text file.[N]H>Owhich shows that you are clever.[N]H>SThe last question was difficult, but you made it,[N]H>Z
and nothing else.[N]H>]to TECO should just contain an ESCAPE(ALTMODE) character[N]H>dThe first two lines were right, but the third line in input[N]H>kyyy[N]H>mjust "YYY" followed by RETURN and nothing else.[N]H>sThe first line was right, but the second line should be[N]H>zending the TECO insertion by typing "ESCAPE".[N]H?You must finish the second line by typing "RETURN" before[N]H?YYYH?	ixx[N]H?Type "IXX" and then push RETURN.[N]H?First you should type "I", then the first line to[N]H?No "ESCAPE" is necessary on the first line.[N]H?A TECO insertion should begin with the letter "I".[N]H?"IXXH?$YYY[N]H?&XX[N]H?'#have typed ESCAPE(and nothing else) to finish the "INSERT" command.[N]H?/"The first two lines were right, but on the third line, you should[N]H?7CONTROL key.[N]H?:!on your terminal. Then you push the # key without releasing the[N]H?B#To get CONTROL-# you first push the button labelled CONTROL or CTRL[N]H?J
CONTROL-# instead.[N]H?Mof characters. If you cannot find it, try[N]H?SESCAPE is a special key on your terminal, not a string[N]H?ZYou typed "$" instead of ESCAPE.[N]H?^def[N]H?`#The first line was right, but the second line should just be "DEF".[N]H?hcharacters:[N]H?k"The second line of your answer was right expect for the unexpected[N]H?sfile, but you were not asked to do that.[N]H?xYou are trying to put the character comma(",") into the text[N]H@file at all.[N]H@but you were not asked to put the text "BEGIN" into the text[N]H@
You are trying to put the text "BEGIN" into the second line,[N]H@although you have already put that text into the first line.[N]H@You are trying to put the text "ABC" into the second line,[N]H@ the text file. Thus push "RETURN" before pushing "ESCAPE".[N]H@(!the line, since "RETURN" will put an end-of-line indicator into[N]H@0"To put in a whole line into the text, you must push "RETURN" after[N]H@8iabc[N]H@:Time for some repetition.[N]H@>Type "IABC" and then push RETURN.[N]H@Cbe inserted, and then push RETURN.[N]H@HFirst you should type "I", and then the first line to[N]H@Obut you were not asked to do that.[N]H@TYou tried to put in the character comma(",") into the text,[N]H@[,H@]You must thus push "RETURN" before typing the text "DEF".[N]H@dsecond line. You indicate a new line by pushing "RETURN".[N]H@k"You tried to put the text "DEF" into the first line, not into the[N]H@sDEFH@t#The end of the first line is indicated by "RETURN", not by "ESCAPE".[N]H@} should not push ESCAPE until after the end of the second line.[N]HA!which you are to put in. Since the text contains two lines, you[N]HA
sYoulshouldknotfpushNtheESCAPEuntilotherendrofntheowholertext[N]HAthattist"ABC".[N]HA#ImmediatelyEafter"I"youDshouldwwriteathesfirstblineeto"be inserted[N]HA"Youaretryingtoeinsertithertextm"TEXT"sintolthe firstNline,but[N]HA'TEXTHA)cept for the unexpected characters.[N]HAKIABCHAL	into your file.[N]HAODEF[N]HAQABC[N]HASWrite the TECO command to insert the two lines[N]HAYon an electric typewriter.[N]HA]"You end each line by pushing the RETURN key, just as you would do[N]HAe   TEXT FIRSTWORD, SECONDWORD;[N]HAjIBEGIN[N]HAlYou should type on your terminal[N]HAp"[N]HAr    TEXT FIRSTWORD, SECONDWORD;[N]HAv"BEGIN[N]HAxEXAMPLE: to insert the text[N]HA|"You can also insert several lines of text with one insert command.[N]HBIEND$[N]HB
ESCAPE. Nothingpmore,dnoyblanks allowed.[N]HBFirstnyouetype["I",thenthestringrtoebe#inserted,uandothen[N]HBcontainTthis#letter.[N]HB"TheTINSERT command inuTECOrisnthe[letterH"I".YourDanswerwdidenot[N]HB#work, tryNCONTROL-#sinstead.[N]HB'#terminalslabelledoALTMODE.bIfayouscannotefindnit,Nor ifditSdoes.not[N]HB0ESCAPEisaEspecialkeyConyourEterminal.Itisaondsome[N]HB7ESCAPEHB9There shouldNnotbe>anyspacePbetweeni"I"randh"END".[N]HB?aspit"should$on[yourHterminal? Try CONTROL-# instead.[N]HBFYou did not type ESCAPE. Maybe the ESCAPE key is not working[N]HBNfirst letter of the alphabet, # the second last.[N]HBTYou wrote CONTROL-A instead of CONTROL-#. A is the[N]HB[HB\ENDHB^IHBif ESCAPE does not work on your terminal.[N]HBe!You wrote the letter "A" when ESCAPE was expected. Try CONTROL-#[N]HBmIENDAHBnThe last character "$" should not be "$" but "ESCAPE".[N]HBuIEND$HBw!You wrote "{" when you probably intended ESCAPE. CONTROL-# means[N]HB{HCthen releasing both keys.[N]HC#that key down, then pushing the # key while keeping the CONTROL key,[N]HC
finished by an ESCAPE.[N]HCHAfter "I" follows the text to be inserted, and the text is[N]HCP "INSERT" command which is written with the single letter "I".[N]HCWinsert some text into the new file. You do this by using the[N]HC_ The first thing you do when you are creating a new file is to[N]HCf============================[N]HCkInserting text into the file.[N]HCo$[N]HCqabout it.[N]HCs!each other. This may be remedied by the tty command, ask someone[N]HC{!Your terminal and the computer probably do not quite understand[N]HDCTRLHDword CTRL or CONTROL or the character "^"![N]HD
Push theoCONTROLhkeyoandpanother key. Don'trtype the[N]HDCONTROLHDPush the ESCAPE key. Do not type the whole word ESCAPE.[N]HDESCHD#HD[HD Press the ESCAPE key, not the character it will be printed as.[N]HD&$HD'Write "%" if you want to stop.[N]HD,HD-Push the ESCAPE key![N]HD1in this lesson, it does not really mean $, it means ESCAPE.[N]HD8!lesson it will be printed as $. Wherever the $ character occurs[N]HD@The ESCAPE character is not printable. Therefore, in this[N]HDGIf nothing works, please consult your local system manager.[N]HDO!terminals you should use CONTROL-[[ or CONTROL-$ to get ESCAPE.[N]HDWpushing the CONTROL and "#" key on your terminal. On other[N]HD^"you could sometimes push CONTROL-# instead, that is simultaneously[N]HDfIf the ESCAPE key does not work, or if there is no such key,[N]HDnThis is used all the time by TECO.[N]HDs#A very important key on your keyboard is the ESCAPE or ALTMODE key.[N]HD{	===============[N]HD~	The ESCAPE key.[N]HEfew of the mostly used ones.[N]HEThis course will not teach you all commands of TECO, only a[N]HE
======================[N]HE[NT](3)'BACK' to return to the previous question (or text).[2N]HE#[NT](2) 'SKIP' to move on to the next question (or text); orHE*[NT](1) 'STOP' to end the lesson immediately;HE0GNOSIS will then explain how you can typeHE5 on your terminal and then pushing the RETURN button.[2N]HE<-[N]IMPORTANT: You can interrupt the lesson at any time by typing the[N]single character "%"HEG%Stockholm, Sweden, and the Old Dominion University Research Foundation.[N]HEO%instruction  (CAI)  from  the  Research  Institute  of National Defense[N]HEX%This lesson was  produced  by  the  GNOSIS  system  for  computer  aided[N]HE`.[2N]HEb'HEc
No, you missed this one.HElYou're mistaken.HEo
Thatywasn'twcorrect.HErSorry.HEt!HEzYouranswerwas wrong.HE~ng of it now.HF

Keep upethe goodgwork!HFpt trying?HF
  You're making progress.HF  There is hope for you after all!HF
  I knew you could do it.HF
  Yo've got the idea now!HF!	  You're improving!HF$
  Now you're catching on!HF'  You're doing better!HF+OK!HF,Excellent!HF.That's it!HF0Well done!HF2Right!HF4Exactly right!HF7Bravo!HF9Sure!HF:Very good.HF<Good for you!HF?TOPS6THFA%HFB-->HFDHFE^HFG HFH GNOSIS will simulate an acceptable answer:[2N]-->HFN
Just for the record,HFQ]Or...interrupt the lesson by typing the symbol "%".HFX[N](You might want to rethink some of your previous answers.)HF_[N]You have at least eliminated some of the possibilities.HFfPlease try again.HFi%If you want to interrupt the lesson, then type the single character "%".[N]HFr??? You gave no answer at all.HFv"Eh?   The computer expected you would just push the RETURN button.[N]HF~[N]Push RETURN HG[N]I must admit that last one was a bit tricky!HG, HGHG	to the PREVIOUS '-->' or 'RETURN' prompt...[N]HGPlease continue, then, giving your response[N]HG
Lesson is backing.[N]HGBACKHG
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