/LMAR=0/XLINE=10/FONT#0=FIX25/FONT#1=BASI30/FONT#2=NGR25/FONT#3=BDI25
␈↓ α∧␈↓␈↓ εT1␈↓ 
∀SOS MANUAL

␈↓"∧␈↓ α∧␈↓β␈↓ ¬	A SIMPLE GUIDE TO EDITING
␈↓"∧␈↓ α∧␈↓β␈↓ ¬:TEXT FILES WITH SOS



␈↓"∧␈↓ α∧␈↓β␈↓αA␈α␈↓βtext␈αfile␈↓α␈αto␈αthe␈αcomputer␈αmay␈αbe␈αconsidered␈αas␈αa␈αset␈αof␈αlines␈αof␈αtext;␈αwhat␈αyou␈αare␈αreading
␈↓ α∧␈↓αnow␈αis␈αin␈αsuch␈αa␈α
file␈αon␈αthe␈αcomputer.␈α A␈α
text␈αfile␈αmay␈αbe␈αtyped␈αin␈α
a␈αfirst␈αtime␈α-␈αwhich␈α
is␈αto
␈↓ α∧␈↓α␈↓βcreate␈↓α␈αa␈αfile␈α-␈αand␈αthereafter␈αit␈αmay␈αbe␈αmodified␈α-␈αwhich␈αis␈αto␈α␈↓βedit␈↓α␈αa␈αfile.␈α An␈α␈↓βeditor␈↓α␈αis␈αused␈α
to
␈↓ α∧␈↓αcreate and modify text files.

␈↓"∧␈↓ α∧␈↓αWe␈α∂will␈α∂here␈α∂discuss␈α∂in␈α∂simple␈α∂terms␈α∂one␈α∂editor␈α∂used␈α∂on␈α∂this␈α∂computer,␈α∂namely␈α∂␈↓βSOS␈↓α.␈α⊂ It␈α∂is
␈↓ α∧␈↓αimportant␈α∞to␈α∞realize␈α∞that␈α∂there␈α∞are␈α∞two␈α∞basic␈α∞elements␈α∂in␈α∞using␈α∞an␈α∞editor.␈α∞ First,␈α∂of␈α∞course,
␈↓ α∧␈↓αthere␈αare␈αthe␈αmany␈αlines␈αof␈αtext␈αthat␈αyou␈αwant␈αto␈αtype␈αinto␈αthe␈αfile␈αitself.␈α Perhaps␈α
they␈αare
␈↓ α∧␈↓αthe␈αcomputer␈αprogram␈α
that␈αyou␈αare␈αwriting,␈α
or␈αmaybe␈αjust␈αa␈α
letter␈αor␈αexplanatory␈α
prose␈αlike
␈↓ α∧␈↓αthis.␈α ␈↓βSOS␈↓α␈αwill␈α
display␈αto␈αyou␈αa␈α
unique␈α␈↓βnumber␈↓α␈αto␈αthe␈α
left␈αof␈αeach␈αline␈α
of␈αtext␈αas␈αyou␈α
type␈αit
␈↓ α∧␈↓αinto the file.

␈↓"∧␈↓ α∧␈↓αThese␈αnumbers␈αwill␈αbe␈αused␈αin␈αconjunction␈αwith␈αthe␈αsecond␈αbasic␈αelement␈αin␈αusing␈αthe␈αeditor:
␈↓ α∧␈↓αthe␈αvarious␈α␈↓βcommands␈↓α␈αthat␈αyou␈αwill␈αbe␈αgiving␈αto␈αthe␈αeditor␈αthat␈α(hopefully)␈αwill␈αnot␈αappear␈αin
␈↓ α∧␈↓αthe␈α
file␈α
itself.␈α
 Typical␈α
commands␈α
used␈α
in␈α
modifying␈α
text␈α
files␈α
allow␈α
you␈α
to␈α
insert,␈α∞replace␈α
or
␈↓ α∧␈↓αdelete␈αspecified␈α
lines␈αof␈α
text.␈α To␈α
␈↓βSOS␈↓α␈αyou␈α
would␈αtype␈α
a␈αspecial␈α
letter␈αfor␈α
each␈αcommand␈α
along
␈↓ α∧␈↓αwith␈αthe␈αline␈αnumbers␈αthat␈αyou␈αwanted␈αto␈α
affect.␈α You␈αwill␈αhave␈αto␈αdistinguish␈αfrom␈αthe␈α
outset,
␈↓ α∧␈↓αthen,␈αthe␈αdifference␈αbetween␈αtyping␈αyour␈αlines␈αof␈αtext␈αinto␈αa␈αfile␈αand␈αtyping␈αthe␈αcommands␈αto
␈↓ α∧␈↓αthe editor to modify the text file.

␈↓"∧␈↓ α∧␈↓αThis␈α
guide␈αwill␈α
introduce␈α
you␈αto␈α
the␈αbasic␈α
techniques␈α
of␈αusing␈α
␈↓βSOS␈↓α,␈αwhich␈α
includes␈α
when␈αand
␈↓ α∧␈↓αhow␈α∞you␈α∞can␈α∞create␈α∞and␈α∞edit␈α∞files,␈α∞and␈α∞how␈α∞to␈α∞use␈α∞the␈α∞many␈α∞specific␈α∞commands␈α∞in␈α∞␈↓βSOS␈↓α␈α
for
␈↓ α∧␈↓αmodifying text.

␈↓"∧␈↓ α∧␈↓αIn␈α∞this␈α∂document,␈α∞the␈α∂font␈α∞that␈α∂you␈α∞are␈α∂now␈α∞reading␈α∂is␈α∞used␈α∂for␈α∞explanatory␈α∂text,␈α∞whereas
␈↓ α∧␈↓αexamples␈αof␈αdialogue␈αwith␈αthe␈αcomputer␈αwill␈αbe␈αindented␈αand␈αprinted␈αin␈αother␈αfonts.␈α The␈αfirst
␈↓ α∧␈↓αexample␈αshown␈αon␈α
the␈αnext␈αpage␈α
demonstrates␈αthis␈αuse␈α
of␈αfonts.␈α It␈α
is␈αan␈αexample␈α
of␈αlogging
␈↓ α∧␈↓αon␈α∂the␈α∂computer.␈α∂ In␈α∂the␈α∞example,␈α∂you␈α∂would␈α∂type␈α∂the␈α∞"␈↓↓L␈↓α"␈α∂and␈α∂then␈α∂the␈α∂message␈α∂"␈↓JOB␈α∞34
␈↓ α∧␈↓Stanford␈α∩7.01/Q␈α∩07-23-75␈↓α"␈α∩would␈α∩be␈α∩typed␈α∩back␈α∩to␈α∩you␈α∩by␈α∩the␈α∩computer.␈α∩ Next␈α⊃the
␈↓ α∧␈↓αcomputer␈αwould␈αtype␈α
the␈α"␈↓#␈↓α"␈αsign,␈αat␈α
which␈αyou␈αwould␈αtype␈α
your␈αidentification␈α-␈αin␈α
this␈αcase
␈↓ α∧␈↓α"␈↓↓MUS/JMG␈↓α".

␈↓"∧␈↓ α∧␈↓α␈↓βNote␈↓α:␈αall␈αtext␈αlines␈αthat␈αyou␈αtype␈αare␈αconcluded␈αby␈αhitting␈αthe␈α<␈↓βRETURN␈↓α>␈αkey.␈α The␈αsigns␈α"<"
␈↓ α∧␈↓αand␈α">"␈αwill␈α
surround␈αthe␈αnames␈α
of␈αthree␈αspecial␈αkeys␈α
on␈αyour␈αteletype:␈α
<␈↓βRETURN␈↓α>␈α<␈↓βCALL␈↓α>
␈↓ α∧␈↓αand␈α
<␈↓βALT␈↓α>.␈α When␈α
you␈α
see␈αthe␈α
latter␈αthree␈α
special␈α
keys␈αreferred␈α
to␈αin␈α
examples␈α
below,␈αyou
␈↓ α∧␈↓αare␈αmeant␈αto␈αhit␈αthe␈αspecial␈αkey.␈α For␈αinstance,␈αto␈αget␈αto␈αthe␈αmonitor␈αlevel␈αfrom␈αany␈αprogram
␈↓ α∧␈↓αyou hit the special <␈↓βCALL␈↓α> key; you don't type out the six letters "<" "C" "A" "L" "L" ">".
␈↓ α∧␈↓␈↓ εT2␈↓ 
∀SOS MANUAL



␈↓"∧␈↓ α∧␈↓α␈↓ ∧,␈↓βWHEN CAN YOU CREATE AND EDIT FILES?␈↓α

␈↓"∧␈↓ α∧␈↓αIn␈αorder␈αto␈αcreate␈αand␈αedit␈αfiles,␈αyou␈αmust␈αbe␈α␈↓βlogged␈αon␈↓α␈αand␈αat␈α␈↓βmonitor␈αlevel␈↓α.␈α To␈αlog␈αon,␈αfirst
␈↓ α∧␈↓αfind a vacant console or teletype.  You then can say:

␈↓"∧␈↓ α∧␈↓α␈↓ βD␈↓↓L
␈↓"∧␈↓ α∧␈↓↓␈↓ βD␈↓JOB 34    Stanford 7.01/Q 07-23-75
␈↓"∧␈↓ α∧␈↓␈↓ βD#␈↓↓MUS/JMG␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βDFriday  25-JUL-75       1055


␈↓"∧␈↓ α∧␈↓␈↓ βDEXIT
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD.

␈↓"∧␈↓ α∧␈↓αIf␈α
you␈αare␈α
already␈αlogged␈α
on␈αand␈α
have␈α
been␈αrunning␈α
other␈αprograms,␈α
then␈αyou␈α
must␈αmake␈α
sure
␈↓ α∧␈↓αthat␈αyou␈αare␈αat␈α
the␈α␈↓βmonitor␈αlevel␈↓α␈αbefore␈α
trying␈αto␈αcreate␈αor␈α
edit␈αa␈αfile.␈α If␈α
you␈αare␈αnot␈αsure␈α
of
␈↓ α∧␈↓αthis, hit the <␈↓βCALL␈↓α> key, and you should get the following back from the computer:

␈↓"∧␈↓ α∧␈↓α␈↓ βD<␈↓βCALL␈↓α>␈↓↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C

␈↓"∧␈↓ α∧␈↓␈↓ βD.

␈↓"∧␈↓ α∧␈↓αNote␈αthat␈α
in␈αboth␈α
the␈αcases␈α
above,␈αthe␈α
dot␈α<".">␈α
is␈αthe␈α
last␈αthing␈α
typed␈αout␈α
by␈αthe␈αcomputer␈α
to
␈↓ α∧␈↓αyou.  This is the sign that you are at the monitor level, and can use the editor.

␈↓"∧␈↓ α∧␈↓αYou␈α
may␈αonly␈α
␈↓βcreate␈↓α␈α
a␈α␈↓βnew␈↓α␈α
file.␈α
 If␈αyou␈α
already␈αhave␈α
a␈α
file␈αby␈α
the␈α
name␈αyou␈α
want␈α
to␈αcreate,
␈↓ α∧␈↓αyou must first get rid of the old file.


␈↓"∧␈↓ α∧␈↓α␈↓ ¬→␈↓βHOW TO CREATE AND EXIT␈↓α

␈↓"∧␈↓ α∧␈↓αSay␈α
that␈α
you␈α
want␈αto␈α
create␈α
a␈α
new␈αfile␈α
named␈α
"ALFRED",␈α
and␈α
you␈αare␈α
logged␈α
on␈α
and␈αat␈α
monitor
␈↓ α∧␈↓αlevel.  You type to the monitor's dot <".">  (which is included below):

␈↓"∧␈↓ α∧␈↓α␈↓ βD␈↓.␈↓↓CREATE ALFRED

␈↓"∧␈↓ α∧␈↓αYou will get back from ␈↓βSOS␈↓α:

␈↓"∧␈↓ α∧␈↓α␈↓ βD␈↓00100

␈↓"∧␈↓ α∧␈↓αThis␈α∞will␈α
be␈α∞your␈α
first␈α∞line␈α
of␈α∞text.␈α∞ It␈α
has␈α∞the␈α
number␈α∞"100".␈α
 ␈↓βSOS␈↓α␈α∞will␈α
number␈α∞each␈α∞line␈α
of
␈↓ α∧␈↓αtext, so that you will later be able to refer to any line by its number and modify it.

␈↓"∧␈↓ α∧␈↓αAn␈α∩extended␈α⊃example␈α∩of␈α⊃how␈α∩you␈α⊃would␈α∩type␈α⊃into␈α∩the␈α⊃file␈α∩"ALFRED"␈α⊃the␈α∩last␈α⊃paragraph
␈↓ α∧␈↓αappears␈α∂below.␈α∂ When␈α∂the␈α⊂first␈α∂line␈α∂has␈α∂been␈α∂typed␈α⊂and␈α∂the␈α∂<␈↓βRETURN␈↓α>␈α∂key␈α⊂pressed,␈α∂the
␈↓ α∧␈↓αnumber␈α∞for␈α∞the␈α
next␈α∞line␈α∞is␈α∞typed␈α
out␈α∞by␈α∞the␈α
computer␈α∞and␈α∞appears␈α∞to␈α
the␈α∞left␈α∞of␈α∞the␈α
text
␈↓ α∧␈↓αitself.␈α
 Likewise,␈α∞as␈α
each␈α∞new␈α
line␈α∞is␈α
finished,␈α
the␈α∞number␈α
of␈α∞the␈α
next␈α∞line␈α
appears␈α∞from␈α
the
␈↓ α∧␈↓αcomputer.
␈↓ α∧␈↓␈↓ εT3␈↓ 
∀SOS MANUAL

␈↓"∧␈↓ α∧␈↓αThe␈α∂next␈α∂line␈α∂number␈α∞will␈α∂continue␈α∂to␈α∂appear␈α∞when␈α∂you␈α∂complete␈α∂the␈α∞line␈α∂of␈α∂text␈α∂you␈α∞are
␈↓ α∧␈↓αtyping.␈α⊂ Even␈α⊂when␈α⊂have␈α∂finally␈α⊂typed␈α⊂in␈α⊂your␈α∂last␈α⊂line␈α⊂of␈α⊂text,␈α∂you␈α⊂will␈α⊂still␈α⊂get␈α⊂the␈α∂line
␈↓ α∧␈↓αnumber␈α∂for␈α∂a␈α∞next␈α∂line␈α∂of␈α∞text.␈α∂ At␈α∂this␈α∂point␈α∞you␈α∂really␈α∂want␈α∞to␈α∂terminate␈α∂the␈α∂process␈α∞of
␈↓ α∧␈↓αcreation and ␈↓βexit␈↓α from the editor, leaving you text file as you have created it.

␈↓"∧␈↓ α∧␈↓αTo␈α
exit␈α
from␈α
editing,␈α
you␈α
must␈α
first␈α
get␈α
to␈α
the␈α
level␈α
where␈α
you␈α
will␈α
not␈α
type␈α
more␈α∞text␈α
into
␈↓ α∧␈↓αyour␈αfile␈α
but␈αrather␈α
will␈αtype␈α
a␈α␈↓βcommand␈↓α␈α
to␈αthe␈α
editor.␈αThis␈α
is␈αdone␈α
by␈αhitting␈α
the␈α<␈↓βALT␈↓α>␈α
key,
␈↓ α∧␈↓αwhich "alters" your level to the editor from typing text to typing commands.

␈↓"∧␈↓ α∧␈↓αWhen␈αyou␈α
are␈αin␈α
the␈αcommand␈α
level,␈αthe␈αcomputer␈α
will␈αstop␈α
printing␈αout␈α
next␈αline␈αnumbers␈α
and
␈↓ α∧␈↓αinstead␈α
will␈α
print␈α
out␈α
to␈α
you␈α
a␈α
star␈α
<"*">␈α
to␈α
the␈α
left␈α
of␈α
the␈α
screen.␈α
 To␈α
this␈α
"*"␈α
you␈α
will␈α
give␈α
the
␈↓ α∧␈↓αcommand␈α
to␈α
exit,␈α
which␈α
is␈α
"␈↓↓E␈↓α".␈α
 This␈α
will␈α
result␈α
in␈α
returning␈α
you␈α
to␈α
monitor␈α
level.␈α
 The␈α
following
␈↓ α∧␈↓αexample starts at monitor level and shows how to create "ALFRED" and exit from the editor.

␈↓"∧␈↓ α∧␈↓α␈↓ βD<␈↓βCALL␈↓α>␈↓↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C

␈↓"∧␈↓ α∧␈↓␈↓ βD.␈↓↓CREATE ALFRED␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βD00100   ␈↓↓THIS WILL BE YOUR FIRST LINE OF TEXT.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00200   ␈↓↓IT HAS THE NUMBER "100".␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00300   ␈↓↓SOS WILL NUMBER EACH LINE OF TEXT,␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00400   ␈↓↓SO THAT YOU WILL LATER BE ABLE␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00500   ␈↓↓TO REFER TO ANY LINE BY ITS NUMBER␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00600   ␈↓↓AND MODIFY IT.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00700   ␈↓α<␈↓βALT␈↓α>␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓E

␈↓"∧␈↓ α∧␈↓↓␈↓ βD␈↓EXIT
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD.

␈↓"∧␈↓ α∧␈↓αThe␈αexample␈αabove␈αassumed,␈αof␈αcourse,␈αthat␈αthe␈αfile␈α"ALFRED"␈αwas␈αnewly␈αcreated.␈α If,␈αinstead,
␈↓ α∧␈↓αyou␈α∩had␈α∩attempted␈α∩to␈α∩create␈α∩it␈α∩and␈α⊃there␈α∩had␈α∩already␈α∩been␈α∩a␈α∩file␈α∩called␈α∩"ALFRED",␈α⊃the
␈↓ α∧␈↓αfollowing would occur:

␈↓"∧␈↓ α∧␈↓α␈↓ βD<␈↓βCALL␈↓α>␈↓↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C

␈↓"∧␈↓ α∧␈↓␈↓ βD.␈↓↓CREATE ALFRED␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βDFILE ALREADY EXISTS! DELETE? (Y OR N)
␈↓"∧␈↓ α∧␈↓␈↓ βD*

␈↓"∧␈↓ α∧␈↓αNote␈α∞that␈α
the␈α∞computer␈α∞printed␈α
out␈α∞a␈α
"*"␈α∞rather␈α∞than␈α
"␈↓00100".␈α∞ At␈α
this␈α∞point,␈α∞␈↓βSOS␈↓α␈α
has
␈↓ α∧␈↓αplaced␈αyou␈αat␈αits␈αcommand-giving␈αlevel.␈α If␈αyou␈αare␈α␈↓βabsolutely␈αsure␈↓α␈αthat␈αyou␈αwant␈αto␈αcreate␈αa
␈↓ α∧␈↓αnew␈αversion␈αof␈α"ALFRED",␈αstarting␈αfrom␈αscratch␈αagain␈αand␈αforever␈αlosing␈αthe␈αold␈α"ALFRED",␈αhit
␈↓ α∧␈↓αthe␈αkey␈α"␈↓↓Y␈↓α"␈α(no␈α<␈↓βRETURN␈↓α>␈αin␈αthis␈αcase).␈α Upon␈αhitting␈αthe␈α"␈↓↓Y␈↓α",␈αyou␈αwill␈αget␈αanother␈αcommand
␈↓ α∧␈↓αlevel␈α
"*"␈α
from␈α
␈↓βSOS␈↓α,␈α
at␈α
which␈α
you␈α
type␈α
"␈↓↓I100␈↓α";␈α
that␈α
will␈α
set␈α
you␈α
up␈α
on␈α
the␈α
level␈α
of␈α∞typing␈α
in
␈↓ α∧␈↓αtext␈αto␈αyour␈αfile,␈αstarting␈αat␈αline␈α100.␈α The␈α"␈↓↓I␈↓α"␈αstands␈αfor␈α␈↓βinsert␈↓α␈αtext,␈αand␈αthe␈α"100"␈αstates␈αthe
␈↓ α∧␈↓αfirst line ␈↓βnumber␈↓α at which to insert text.
␈↓ α∧␈↓␈↓ εT4␈↓ 
∀SOS MANUAL

␈↓"∧␈↓ α∧␈↓αA complete example of the above "␈↓↓Y␈↓α" answer to deleting the old "ALFRED" is given:

␈↓"∧␈↓ α∧␈↓α␈↓ βD<␈↓βCALL␈↓α>␈↓↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C

␈↓"∧␈↓ α∧␈↓␈↓ βD.␈↓↓CREATE ALFRED␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βDFILE ALREADY EXISTS! DELETE? (Y OR N)
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓Y                    ␈↓α(COMMENT: no <␈↓βRETURN␈↓α> after the ␈↓↓Y␈↓α)␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I100␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00100

␈↓"∧␈↓ α∧␈↓αYou␈αare␈αnow␈αset␈αup␈αon␈αline␈α"100"␈αto␈αstart␈αtyping␈αin␈αyour␈αtext,␈αand␈αeverything␈αelse␈αwill␈αbe␈αthe
␈↓ α∧␈↓αsame␈αas␈αin␈αthe␈αcase␈αshown␈αearlier␈αwhere␈αthere␈αreally␈αwas␈αno␈αold␈α"ALFRED"␈αto␈αdelete.␈α
 If␈αyou
␈↓ α∧␈↓αwould␈αrather␈α␈↓βnot␈αdelete␈↓α␈αthe␈αold␈αfile,␈αbut␈αwant␈αto␈αcreate␈αa␈αfile␈αwith␈αa␈αdifferent␈αnew␈αname,␈αthen
␈↓ α∧␈↓αhit␈α⊂<␈↓βCALL␈↓α>␈α⊂instead␈α⊂of␈α⊂typing␈α∂the␈α⊂"␈↓↓Y␈↓α",␈α⊂and␈α⊂try␈α⊂to␈α∂create␈α⊂a␈α⊂file␈α⊂named␈α⊂something␈α⊂else;␈α∂for
␈↓ α∧␈↓αexample:

␈↓"∧␈↓ α∧␈↓α␈↓ βD<␈↓βCALL␈↓α>␈↓↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C

␈↓"∧␈↓ α∧␈↓␈↓ βD.␈↓↓CREATE ALFRED␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βDFILE ALREADY EXISTS! DELETE? (Y OR N)
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓α<␈↓βCALL␈↓α>␈↓↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C

␈↓"∧␈↓ α∧␈↓␈↓ βD.␈↓↓CREATE ALFIE␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βD00100

␈↓"∧␈↓ α∧␈↓α␈↓ ∧9␈↓βHOW TO EDIT WITH SIMPLE COMMANDS␈↓α

␈↓"∧␈↓ α∧␈↓αNow␈αthat␈αwe␈α
have␈α"ALFRED"␈α(assuming␈α
everything␈αwent␈αwell),␈α
we␈αmay␈αedit␈α
the␈αfile␈αat␈αany␈α
time
␈↓ α∧␈↓αto␈α∞make␈α∂desired␈α∞changes.␈α∞ If␈α∂you␈α∞are␈α∂at␈α∞monitor␈α∞level␈α∂and␈α∞have␈α∞already␈α∂created␈α∞a␈α∂file␈α∞(e.g.
␈↓ α∧␈↓α"ALFRED") that you now want to edit, you say:

␈↓"∧␈↓ α∧␈↓α␈↓ βD␈↓.␈↓↓EDIT ALFRED

␈↓"∧␈↓ α∧␈↓αYou␈α
will␈α
get␈α
back␈α
from␈α
␈↓βSOS␈↓α␈α
the␈α
command-giving␈α
level␈α
"*"␈α
at␈α
the␈α
left␈α
of␈α
your␈α
screen.␈α
 To␈αthe␈α
"*"
␈↓ α∧␈↓αyou may type one of the following commands, which are explained in detail later:

␈↓"∧␈↓ α∧␈↓α␈↓ βD␈↓βletter command␈↓              meaning

␈↓"∧␈↓ α∧␈↓␈↓ βD        ␈↓↓E␈↓                   EXIT.
␈↓"∧␈↓ α∧␈↓␈↓ βD        ␈↓↓W␈↓                   SAVE-THE-WORLD!
␈↓"∧␈↓ α∧␈↓␈↓ βD        ␈↓↓P␈↓                   PRINT LINE(S) ON YOUR SCREEN.
␈↓"∧␈↓ α∧␈↓␈↓ βD        ␈↓↓I␈↓                   INSERT LINE(S).
␈↓"∧␈↓ α∧␈↓␈↓ βD        ␈↓↓N␈↓                   RE-NUMBER LINES IN FILE.
␈↓"∧␈↓ α∧␈↓␈↓ βD        ␈↓↓D␈↓                   DELETE LINE(S).
␈↓"∧␈↓ α∧␈↓␈↓ βD        ␈↓↓R␈↓                   REPLACE LINE(S).
␈↓"∧␈↓ α∧␈↓␈↓ βD        ␈↓↓Z␈↓                   SPECIAL LINE-EDIT.
␈↓ α∧␈↓␈↓ εT5␈↓ 
∀SOS MANUAL

␈↓"∧␈↓ α∧␈↓α␈↓ ¬	␈↓βEXIT AND SAVE-THE-WORLD!␈↓α

␈↓"∧␈↓ α∧␈↓αWhen␈αyou␈αare␈αfinished␈αediting,␈αyou␈αmust␈αgive␈αthe␈α"␈↓↓E␈↓α"␈αcommand␈αto␈αexit␈αfrom␈αthe␈αeditor,␈αwhich
␈↓ α∧␈↓αwill␈α∀preserve␈α∀the␈α∀modifications␈α∀you␈α∀have␈α∀made␈α∀to␈α∀your␈α∀file.␈α∀ If␈α∀you␈α∀have␈α∀many,␈α∀many
␈↓ α∧␈↓αmodifications␈αand␈αwould␈αlike␈αto␈αsave␈αthem␈αalong␈αthe␈αway,␈αthe␈α"␈↓↓W␈↓α"␈αcommand␈αis␈αused␈αto␈αupdate
␈↓ α∧␈↓αthe text file.  This saves everything before the "␈↓↓W␈↓α" was typed.

␈↓"∧␈↓ α∧␈↓αSince␈αthere␈αis␈αa␈αslight␈αchance␈αthat␈αthe␈αcomputer␈αmay␈αbreak␈αdown␈αin␈αthe␈αmiddle␈αof␈αyou␈αediting,
␈↓ α∧␈↓αthe␈α⊂occasional␈α⊂"W"␈α∂is␈α⊂very␈α⊂important.␈α∂ If␈α⊂the␈α⊂computer␈α∂does␈α⊂break␈α⊂down␈α∂and␈α⊂you␈α⊂had␈α∂not
␈↓ α∧␈↓α"saved-the-world",␈α∂you␈α∞would␈α∂be␈α∞left␈α∂with␈α∞your␈α∂old␈α∞file␈α∂in␈α∞tact.␈α∂ No␈α∞modifications␈α∂would␈α∞be
␈↓ α∧␈↓αsaved.

␈↓"∧␈↓ α∧␈↓αIf␈α
you␈α
intentionally␈α
wanted␈α
to␈α
abort␈α
your␈α
editing␈α
and␈α
retreive␈α
your␈α
old␈α
file␈α
as␈α
it␈α
was␈αbefore
␈↓ α∧␈↓αediting,␈α
and␈αyou␈α
have␈α
␈↓βnot␈↓α␈α"saved-the-world",␈α
then␈α
you␈αmay␈α
simply␈α
hit␈α<␈↓βCALL␈↓α>␈α
and␈α
return␈αto
␈↓ α∧␈↓αthe␈α
monitor.␈α
Like␈α∞the␈α
computer␈α
breaking␈α
down,␈α∞this␈α
will␈α
leave␈α
your␈α∞old␈α
file␈α
as␈α
it␈α∞was␈α
before
␈↓ α∧␈↓αyou began to edit it the last time.

␈↓"∧␈↓ α∧␈↓α␈↓ ¬<␈↓βTHE PRINT COMMAND␈↓α

␈↓"∧␈↓ α∧␈↓αThe␈αprint␈αcommand␈α
is␈αused␈αto␈α
have␈αthe␈αcomputer␈αtype␈α
out␈αspecific␈αlines␈α
of␈αtext␈αfrom␈αyour␈α
file.
␈↓ α∧␈↓αThe␈αcommand␈αis␈αgiven␈αto␈αthe␈α"*"␈αthat␈αindicates␈αcommand-level␈αin␈α␈↓βSOS␈↓α.␈α It␈αconsists␈αof␈αthe␈αletter
␈↓ α∧␈↓α"␈↓βP␈↓α"␈α
followed␈α
by␈α
either␈α
a␈α
single␈α
number␈α
or␈α∞a␈α
pair␈α
of␈α
numbers␈α
separated␈α
by␈α
a␈α
colon␈α∞<":">.␈α
 If
␈↓ α∧␈↓αjust␈α
a␈α
single␈αnumber␈α
follows␈α
the␈α"␈↓βP␈↓α"␈α
then␈α
just␈αthat␈α
one␈α
line␈αwill␈α
be␈α
printed␈αout.␈α
 If␈α
a␈α
pair␈αof
␈↓ α∧␈↓αnumbers␈αfollows␈αthe␈α"␈↓βP␈↓α",␈αthen␈αthe␈αcomputer␈αwill␈αprint␈αout␈αlines␈αbeginning␈αat␈αthe␈αfirst␈αnumber
␈↓ α∧␈↓αand ending with the last number.

␈↓"∧␈↓ α∧␈↓αThe␈α∞last␈α∞line␈α∂of␈α∞the␈α∞file␈α∞may␈α∂be␈α∞referred␈α∞to␈α∂either␈α∞by␈α∞its␈α∞number␈α∂or␈α∞by␈α∞the␈α∂character␈α∞␈↓βstar␈↓α
␈↓ α∧␈↓α<"*">.␈α The␈αcurrent␈αline␈αof␈αtext␈αthat␈αis␈α
being␈αdisplayed␈αby␈α␈↓βSOS␈↓α␈αmay␈αbe␈αreferred␈αto␈αby␈α
number,
␈↓ α∧␈↓αor by the character ␈↓βdot␈↓α <"."> as is shown in the following example:

␈↓"∧␈↓ α∧␈↓α␈↓ βD<␈↓βCALL␈↓α>␈↓↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C

␈↓"∧␈↓ α∧␈↓␈↓ βD.␈↓↓EDIT ALFRED␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓P100␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00100   THIS WILL BE YOUR FIRST LINE OF TEXT.
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓P200:300␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00200   IT HAS THE NUMBER "100".
␈↓"∧␈↓ α∧␈↓␈↓ βD00300   SOS WILL NUMBER EACH LINE OF TEXT,
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓P.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00300   SOS WILL NUMBER EACH LINE OF TEXT,
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓P400␈↓:*
␈↓"∧␈↓ α∧␈↓␈↓ βD00400   SO THAT YOU WILL LATER BE ABLE
␈↓"∧␈↓ α∧␈↓␈↓ βD00500   TO REFER TO ANY LINE BY ITS NUMBER
␈↓"∧␈↓ α∧␈↓␈↓ βD00600   AND MODIFY IT.
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓E␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βDEXIT
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD.
␈↓ α∧␈↓␈↓ εT6␈↓ 
∀SOS MANUAL

␈↓"∧␈↓ α∧␈↓α␈↓ ε'␈↓βINSERT␈↓α

␈↓"∧␈↓ α∧␈↓αThe␈α
insert␈α
command␈α
allows␈α∞you␈α
to␈α
start␈α
inserting␈α
additional␈α∞lines␈α
of␈α
text␈α
into␈α
your␈α∞file.␈α
 You
␈↓ α∧␈↓αspecify␈α
as␈αa␈α
part␈αof␈α
the␈αcommand␈α
exactly␈αwhere␈α
in␈αthe␈α
file␈αyou␈α
want␈αto␈α
put␈α
these␈αadditional
␈↓ α∧␈↓αlines, and this specification is made in terms of a beginning line number.

␈↓"∧␈↓ α∧␈↓αThe␈αcommand,␈αthen,␈αwould␈αconsist␈αof␈αthe␈αletter␈α"␈↓↓I␈↓α"␈αplus␈αa␈αbeginning␈αline␈αnumber.␈α This␈αnumber
␈↓ α∧␈↓αmust␈αbe␈αa␈α
␈↓βnew␈αnumber␈↓α␈αwhich␈α
does␈αnot␈αappear␈αalready.␈α
 Therefore,␈αif␈αyou␈α
want␈αto␈αinsert␈αa␈α
line
␈↓ α∧␈↓αbetween␈α
two␈αexisting␈α
lines,␈α
say␈α"300"␈α
and␈α
"400",␈αyou␈α
must␈α
specify␈αa␈α
number␈α
between␈αthe␈α
two,
␈↓ α∧␈↓αfor instance "350".

␈↓"∧␈↓ α∧␈↓αIf␈αyou␈αare␈α
inserting␈αlines␈αonto␈α
the␈αend␈αof␈α
the␈αfile,␈αyou␈α
will␈αkeep␈αgetting␈α
new␈αline␈αnumbers,␈α
just
␈↓ α∧␈↓αlike␈αthe␈αsituation␈αwhen␈αyou␈αare␈αcreating␈αa␈αfile.␈α Indeed,␈αlike␈αthat␈αcase,␈αto␈αterminate␈α
the␈αinsert
␈↓ α∧␈↓αprocess you must get back to command-level by typing an <␈↓βALT␈↓α>.

␈↓"∧␈↓ α∧␈↓αWe␈α∂will␈α∂look␈α∂at␈α∂several␈α∂possible␈α∂insert␈α∂commands␈α∂based␈α∂upon␈α∂the␈α∂following␈α∂file␈α⊂which␈α∂was
␈↓ α∧␈↓αcreated above:

␈↓"∧␈↓ α∧␈↓α␈↓ βD<␈↓βCALL␈↓α>␈↓↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C

␈↓"∧␈↓ α∧␈↓␈↓ βD.␈↓↓EDIT ALFRED␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓P100␈↓:*
␈↓"∧␈↓ α∧␈↓␈↓ βD00100   THIS WILL BE YOUR FIRST LINE OF TEXT.
␈↓"∧␈↓ α∧␈↓␈↓ βD00200   IT HAS THE NUMBER "100".
␈↓"∧␈↓ α∧␈↓␈↓ βD00300   SOS WILL NUMBER EACH LINE OF TEXT,
␈↓"∧␈↓ α∧␈↓␈↓ βD00400   SO THAT YOU WILL LATER BE ABLE
␈↓"∧␈↓ α∧␈↓␈↓ βD00500   TO REFER TO ANY LINE BY ITS NUMBER
␈↓"∧␈↓ α∧␈↓␈↓ βD00600   AND MODIFY IT.
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I350␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00350   ␈↓↓NORMALLY INCREMENTING BY 100'S,␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I700␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00700   ␈↓↓TO STOP INSERTING MORE TEXT LINES,␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00800   ␈↓↓EITHER WHEN CREATING OR EDITING,␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00900   ␈↓↓YOU HIT THE <ALT> KEY AND GET THE <"*">␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD01000   ␈↓↓THAT INDICATES COMMAND-LEVEL INPUT.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD01100   ␈↓↓<␈↓βALT␈↓↓>␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I650␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00650
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00675
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓E␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βDEXIT
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD.

␈↓"∧␈↓ α∧␈↓αThe␈α∃last␈α∃two␈α∃inserts,␈α∃at␈α∃lines␈α∃"650"␈α∃and␈α∃"675",␈α∃just␈α∃inserted␈α∃blank␈α∃lines,␈α∃making␈α∀two
␈↓ α∧␈↓αparagraphs.  This was done by typing <␈↓βRETURN␈↓α> to the line numbers given back by ␈↓βSOS␈↓α.

␈↓"∧␈↓ α∧␈↓αNote␈αalso␈α
that␈αthe␈αcommand␈α
"␈↓↓I.␈↓α"␈αfollowing␈αsome␈α
displayed␈αline␈αwill␈α
insert␈αhalfway␈αbetween␈α
that
␈↓ α∧␈↓αline␈αand␈αthe␈αnext␈αone␈α
in␈αthe␈αfile,␈αe.g.␈α halfway␈αbetween␈α
"650"␈αand␈α"700"␈αwill␈αbe␈α"675".␈α
 Notice,
␈↓ α∧␈↓αfinally, that we had to hit <␈↓βALT␈↓α> to stop inserting at the end of the file.
␈↓ α∧␈↓␈↓ εT7␈↓ 
∀SOS MANUAL

␈↓"∧␈↓ α∧␈↓α␈↓ ε¬␈↓βRE-NUMBER␈↓α

␈↓"∧␈↓ α∧␈↓αThe␈α∪re-number␈α∪command␈α∪will␈α∀change␈α∪the␈α∪line␈α∪numbers␈α∪in␈α∀your␈α∪file␈α∪such␈α∪that␈α∀they␈α∪are
␈↓ α∧␈↓αincrementing␈α
by␈α100's.␈α
 It␈α
is␈αuseful␈α
if␈αyou␈α
have␈α
inserted␈αmany␈α
lines␈α
between␈αtwo␈α
lines,␈αor␈α
have
␈↓ α∧␈↓αdeleted several lines.  It merely consists of the letter "␈↓↓N␈↓α", for ␈↓βnumber␈↓α.

␈↓"∧␈↓ α∧␈↓α␈↓ βD<␈↓βCALL␈↓α>␈↓↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C

␈↓"∧␈↓ α∧␈↓␈↓ βD.␈↓↓EDIT ALFRED␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓P100␈↓:*
␈↓"∧␈↓ α∧␈↓␈↓ βD00100   THIS WILL BE YOUR FIRST LINE OF TEXT.
␈↓"∧␈↓ α∧␈↓␈↓ βD00200   IT HAS THE NUMBER "100".
␈↓"∧␈↓ α∧␈↓␈↓ βD00300   SOS WILL NUMBER EACH LINE OF TEXT,
␈↓"∧␈↓ α∧␈↓␈↓ βD00350   NORMALLY INCREMENTING BY 100'S,
␈↓"∧␈↓ α∧␈↓␈↓ βD00400   SO THAT YOU WILL LATER BE ABLE
␈↓"∧␈↓ α∧␈↓␈↓ βD00500   TO REFER TO ANY LINE BY ITS NUMBER
␈↓"∧␈↓ α∧␈↓␈↓ βD00600   AND MODIFY IT.
␈↓"∧␈↓ α∧␈↓␈↓ βD00650
␈↓"∧␈↓ α∧␈↓␈↓ βD00675
␈↓"∧␈↓ α∧␈↓␈↓ βD00700   TO STOP INSERTING MORE TEXT LINES,
␈↓"∧␈↓ α∧␈↓␈↓ βD00800   EITHER WHEN CREATING OR EDITING,
␈↓"∧␈↓ α∧␈↓␈↓ βD00900   YOU HIT THE <ALT> KEY AND GET THE <"*">
␈↓"∧␈↓ α∧␈↓␈↓ βD01000   THAT INDICATES COMMAND-LEVEL INPUT.
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓N␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓P100␈↓:*
␈↓"∧␈↓ α∧␈↓␈↓ βD00100   THIS WILL BE YOUR FIRST LINE OF TEXT.
␈↓"∧␈↓ α∧␈↓␈↓ βD00200   IT HAS THE NUMBER "100".
␈↓"∧␈↓ α∧␈↓␈↓ βD00300   SOS WILL NUMBER EACH LINE OF TEXT,
␈↓"∧␈↓ α∧␈↓␈↓ βD00400   NORMALLY INCREMENTING BY 100'S,
␈↓"∧␈↓ α∧␈↓␈↓ βD00500   SO THAT YOU WILL LATER BE ABLE
␈↓"∧␈↓ α∧␈↓␈↓ βD00600   TO REFER TO ANY LINE BY ITS NUMBER
␈↓"∧␈↓ α∧␈↓␈↓ βD00700   AND MODIFY IT.
␈↓"∧␈↓ α∧␈↓␈↓ βD00800
␈↓"∧␈↓ α∧␈↓␈↓ βD00900
␈↓"∧␈↓ α∧␈↓␈↓ βD01000   TO STOP INSERTING MORE TEXT LINES,
␈↓"∧␈↓ α∧␈↓␈↓ βD01100   EITHER WHEN CREATING OR EDITING,
␈↓"∧␈↓ α∧␈↓␈↓ βD01200   YOU HIT THE <ALT> KEY AND GET THE <"*">
␈↓"∧␈↓ α∧␈↓␈↓ βD01300   THAT INDICATES COMMAND-LEVEL INPUT.
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓E␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βDEXIT
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD.
␈↓ α∧␈↓␈↓ εT8␈↓ 
∀SOS MANUAL

␈↓"∧␈↓ α∧␈↓α␈↓ ¬:␈↓βDELETE AND REPLACE␈↓α

␈↓"∧␈↓ α∧␈↓αThe␈α
delete␈α
command,␈α
having␈α
the␈α
command-letter␈α
"␈↓↓D␈↓α",␈α
is␈α
used␈α
to␈α
get␈α
rid␈α
of␈α
lines␈α
in␈α∞your␈α
file.
␈↓ α∧␈↓αYou␈α
must␈α
specify␈αa␈α
single␈α
line␈αnumber␈α
or␈α
a␈αpair␈α
of␈α
line␈αnumbers␈α
separated␈α
by␈αa␈α
<":">,␈α
as␈αin␈α
the
␈↓ α∧␈↓αprint command discussed above.  Then ␈↓βSOS␈↓α will know which line(s) to get rid of (be careful!).

␈↓"∧␈↓ α∧␈↓αThe␈αreplace␈α
command␈αis␈α
similar␈αto␈αthe␈α
delete␈αcommand␈α
in␈αits␈αformat,␈α
using␈αthe␈α
letter␈α"R"␈αplus␈α
a
␈↓ α∧␈↓αline␈αnumber␈αor␈αpair␈αof␈αnumbers.␈α This␈αcommand␈αwill␈αerase␈αwhat␈αwas␈αon␈αthe␈αspecified␈αline␈αand
␈↓ α∧␈↓αthen print out the line number for you to type in a new line having that same number.

␈↓"∧␈↓ α∧␈↓α␈↓ βD<␈↓βCALL␈↓α>␈↓↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C

␈↓"∧␈↓ α∧␈↓␈↓ βD.␈↓↓EDIT ALFRED␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓P100␈↓:*
␈↓"∧␈↓ α∧␈↓␈↓ βD00100   THIS WILL BE YOUR FIRST LINE OF TEXT.
␈↓"∧␈↓ α∧␈↓␈↓ βD00200   IT HAS THE NUMBER "100".
␈↓"∧␈↓ α∧␈↓␈↓ βD00300   SOS WILL NUMBER EACH LINE OF TEXT,
␈↓"∧␈↓ α∧␈↓␈↓ βD00400   NORMALLY INCREMENTING BY 100'S,
␈↓"∧␈↓ α∧␈↓␈↓ βD00500   SO THAT YOU WILL LATER BE ABLE
␈↓"∧␈↓ α∧␈↓␈↓ βD00600   TO REFER TO ANY LINE BY ITS NUMBER
␈↓"∧␈↓ α∧␈↓␈↓ βD00700   AND MODIFY IT.
␈↓"∧␈↓ α∧␈↓␈↓ βD00800
␈↓"∧␈↓ α∧␈↓␈↓ βD00900
␈↓"∧␈↓ α∧␈↓␈↓ βD01000   TO STOP INSERTING MORE TEXT LINES,
␈↓"∧␈↓ α∧␈↓␈↓ βD01100   EITHER WHEN CREATING OR EDITING,
␈↓"∧␈↓ α∧␈↓␈↓ βD01200   YOU HIT THE <ALT> KEY AND GET THE <"*">
␈↓"∧␈↓ α∧␈↓␈↓ βD01300   THAT INDICATES COMMAND-LEVEL INPUT.
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓D900␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓R1200:1300␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD01200   ␈↓↓YOU PRESS THE <ALT> KEY AND GET THE␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD01300   ␈↓↓STAR <"*"> INDICATING COMMAND-LEVEL.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓P100␈↓:*
␈↓"∧␈↓ α∧␈↓␈↓ βD00100   THIS WILL BE YOUR FIRST LINE OF TEXT.
␈↓"∧␈↓ α∧␈↓␈↓ βD00200   IT HAS THE NUMBER "100".
␈↓"∧␈↓ α∧␈↓␈↓ βD00300   SOS WILL NUMBER EACH LINE OF TEXT,
␈↓"∧␈↓ α∧␈↓␈↓ βD00400   NORMALLY INCREMENTING BY 100'S,
␈↓"∧␈↓ α∧␈↓␈↓ βD00500   SO THAT YOU WILL LATER BE ABLE
␈↓"∧␈↓ α∧␈↓␈↓ βD00600   TO REFER TO ANY LINE BY ITS NUMBER
␈↓"∧␈↓ α∧␈↓␈↓ βD00700   AND MODIFY IT.
␈↓"∧␈↓ α∧␈↓␈↓ βD00800
␈↓"∧␈↓ α∧␈↓␈↓ βD01000   TO STOP INSERTING MORE TEXT LINES,
␈↓"∧␈↓ α∧␈↓␈↓ βD01100   EITHER WHEN CREATING OR EDITING,
␈↓"∧␈↓ α∧␈↓␈↓ βD01200   YOU PRESS THE <ALT> KEY AND GET THE
␈↓"∧␈↓ α∧␈↓␈↓ βD01300   STAR <"*"> INDICATING COMMAND-LEVEL.
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓E␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βDEXIT
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD.
␈↓ α∧␈↓␈↓ εT9␈↓ 
∀SOS MANUAL

␈↓"∧␈↓ α∧␈↓α␈↓ ¬←␈↓βTHE Z-COMMAND␈↓α

␈↓"∧␈↓ α∧␈↓αThe␈α
"␈↓↓Z␈↓α"␈α
command␈αallows␈α
you␈α
to␈α
use␈αthe␈α
special␈α
line-editor␈α
at␈αStanford␈α
for␈α
the␈αline(s)␈α
specified.
␈↓ α∧␈↓αAgain,␈α
the␈α
specification␈α
of␈α
line␈α
numbers␈α
is␈α
either␈α
a␈α
single␈α
number␈α
or␈α
pair␈α
of␈αnumbers␈α
separated
␈↓ α∧␈↓αby a <":">, as in the print, delete and replace commands.

␈↓"∧␈↓ α∧␈↓αThe␈αspecial␈α
line-editor␈αallows␈αyou␈α
to␈αmodify␈αthe␈α
line␈αof␈α
text␈αthat␈αyou␈α
are␈αcurrently␈αtyping.␈α
 By
␈↓ α∧␈↓αusing␈α⊃the␈α⊃<␈↓βCONTROL␈↓α>␈α⊃key,␈α⊃you␈α⊂may␈α⊃back-space␈α⊃<␈↓βBS␈↓α>␈α⊃and␈α⊃forward-space␈α⊂<␈↓βSPACE-KEY␈↓α>
␈↓ α∧␈↓αwithout␈α∞deleting␈α
letters␈α∞in␈α
the␈α∞line.␈α
 The␈α∞<␈↓βMETA␈↓α>␈α
key␈α∞allows␈α
you␈α∞the␈α
insert␈α∞characters␈α
into
␈↓ α∧␈↓αthe middle of the line you are typing.

␈↓"∧␈↓ α∧␈↓αThese␈α
special␈αline-editing␈α
facilities␈αare␈α
specific␈αto␈α
Stanford,␈αand␈α
may␈αbe␈α
used␈αat␈α
any␈α
level␈αof
␈↓ α∧␈↓αinput␈α⊃to␈α⊃the␈α⊂computer,␈α⊃in␈α⊃␈↓βSOS␈↓α,␈α⊂to␈α⊃the␈α⊃monitor␈α⊂and␈α⊃to␈α⊃most␈α⊂other␈α⊃programs.␈α⊃ It␈α⊃has␈α⊂been
␈↓ α∧␈↓αdesigned to assist (us) poor typers /$!@? typists.
␈↓ α∧␈↓␈↓ εL10␈↓ 
∀SOS MANUAL

␈↓"∧␈↓ α∧␈↓α␈↓ ¬2␈↓βAN EXAMPLE OF ALFIE␈↓α

␈↓"∧␈↓ α∧␈↓α␈↓ βD␈↓↓L
␈↓"∧␈↓ α∧␈↓↓␈↓ βD␈↓JOB 34    Stanford 7.01/Q 07-23-75
␈↓"∧␈↓ α∧␈↓␈↓ βD#␈↓↓MUS/JMG␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βDFriday  25-JUL-75       1055


␈↓"∧␈↓ α∧␈↓␈↓ βDEXIT
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD.␈↓↓CREATE ALFRED␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βDFILE ALREADY EXISTS! DELETE? (Y OR N)
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓<␈↓βCALL␈↓↓>␈↓↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C

␈↓"∧␈↓ α∧␈↓␈↓ βD.␈↓↓CREATE ALFIE␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βD00100   ␈↓↓WHEN YOU EDIT A FILE WITH SOS,␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00200   ␈↓↓YOU MAY PRINT, INSERT, DELETE AND␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00300   ␈↓↓REPLACE LINES OF TEXT IN YOUR FILE.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00400   ␈↓↓THE COMMAND-LETTERS FOR THESE ARE␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00500   ␈↓↓"P", "I", "D" AND "R", RESPECTIVELY.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00600   ␈↓↓THE OTHER COMMANDS THAT YOU MAY GIVE␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00700   ␈↓↓TO SOS ARE "E" FOR EXIT,␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00800   ␈↓↓"W" FOR SAVE-THE-WORLD,␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00900   ␈↓↓AND "N" FOR RE-NUMBER THE LINES.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD01000   ␈↓↓<␈↓βALT␈↓↓>␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓W␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I510␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00510   ␈↓↓THESE LETTERS MUST BE FOLLOWED BY␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I520␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00520   ␈↓↓A SPECIFICATION OF THE LINE NUMBER(S)␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I530␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00530   ␈↓↓TO BE AFFECTED BY THE COMMAND.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I540␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00540   ␈↓↓IF YOU TYPE ONE NUMBER, ONLY THAT LINE␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I550␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00550   ␈↓↓WILL BE AFFECTED, BUT IF YOU TYPE A PAIR␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I560␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00560   ␈↓↓OF NUMBERS SEPARATED BY A COLON <":">␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00580   ␈↓↓THEN THE COMMAND WILL AFFECT EACH LINE␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00590   ␈↓↓IN BETWEEN AND INCLUDING THE TWO NUMBERS.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00595   ␈↓↓(THE "I" COMMAND ONLY TAKES A SINGLE NUMBER.)␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I596␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00596
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓W␈↓
␈↓ α∧␈↓␈↓ εL11␈↓ 
∀SOS MANUAL

␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓P400:600␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00400   THE COMMAND-LETTERS FOR THESE ARE
␈↓"∧␈↓ α∧␈↓␈↓ βD00500   "P", "I", "D" AND "R", RESPECTIVELY.
␈↓"∧␈↓ α∧␈↓␈↓ βD00510   THESE LETTERS MUST BE FOLLOWED BY
␈↓"∧␈↓ α∧␈↓␈↓ βD00520   A SPECIFICATION OF THE LINE NUMBER(S)
␈↓"∧␈↓ α∧␈↓␈↓ βD00530   TO BE AFFECTED BY THE COMMAND.
␈↓"∧␈↓ α∧␈↓␈↓ βD00540   IF YOU TYPE ONE NUMBER, ONLY THAT LINE
␈↓"∧␈↓ α∧␈↓␈↓ βD00550   WILL BE AFFECTED, BUT IF YOU TYPE A PAIR
␈↓"∧␈↓ α∧␈↓␈↓ βD00560   OF NUMBERS SEPARATED BY A COLON <":">
␈↓"∧␈↓ α∧␈↓␈↓ βD00580   THEN THE COMMAND WILL AFFECT EACH LINE
␈↓"∧␈↓ α∧␈↓␈↓ βD00590   IN BETWEEN AND INCLUDING THE TWO NUMBERS.
␈↓"∧␈↓ α∧␈↓␈↓ βD00595   (THE "I" COMMAND ONLY TAKES A SINGLE NUMBER.)
␈↓"∧␈↓ α∧␈↓␈↓ βD00596
␈↓"∧␈↓ α∧␈↓␈↓ βD00600   THE OTHER COMMANDS THAT YOU MAY GIVE
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓P500␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00500   "P", "I", "D" AND "R", RESPECTIVELY.
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00505
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓P595␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00595   (THE "I" COMMAND ONLY TAKES A SINGLE NUMBER.)
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓R.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00595   ␈↓↓THE "I" COMMAND TAKES ONE NUMBER ONLY.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓D400:500␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓W␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓P100:300␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00100   WHEN YOU EDIT A FILE WITH SOS,
␈↓"∧␈↓ α∧␈↓␈↓ βD00200   YOU MAY PRINT, INSERT, DELETE AND
␈↓"∧␈↓ α∧␈↓␈↓ βD00300   REPLACE LINES OF TEXT IN YOUR FILE.
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00400   ␈↓↓AT STANFORD THERE IS A SPECIAL "Z"-COMMAND.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00500
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I450␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00450
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00475   ␈↓↓THESE COMMANDS ARE RESPECTIVELY ABBREVIATED␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓I.␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00487   ␈↓↓BY THE LETTERS "P", "I", "D", "R" AND "Z".␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓R475␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD00475   ␈↓↓THESE COMMANDS ARE ABBREVIATED, RESPECTIVELY,␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓E␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βDEXIT
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD.␈↓↓EDIT ALFIE␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓P100␈↓:*
␈↓"∧␈↓ α∧␈↓␈↓ βD00100   WHEN YOU EDIT A FILE WITH SOS,
␈↓"∧␈↓ α∧␈↓␈↓ βD00200   YOU MAY PRINT, INSERT, DELETE AND
␈↓"∧␈↓ α∧␈↓␈↓ βD00300   REPLACE LINES OF TEXT IN YOUR FILE.
␈↓ α∧␈↓␈↓ εL12␈↓ 
∀SOS MANUAL

␈↓"∧␈↓ α∧␈↓␈↓ βD00400   AT STANFORD THERE IS A SPECIAL "Z"-COMMAND.
␈↓"∧␈↓ α∧␈↓␈↓ βD00450
␈↓"∧␈↓ α∧␈↓␈↓ βD00475   THESE COMMANDS ARE ABBREVIATED, RESPECTIVELY,
␈↓"∧␈↓ α∧␈↓␈↓ βD00487   BY THE LETTERS "P", "I", "D", "R" AND "Z".
␈↓"∧␈↓ α∧␈↓␈↓ βD00500
␈↓"∧␈↓ α∧␈↓␈↓ βD00510   THESE LETTERS MUST BE FOLLOWED BY
␈↓"∧␈↓ α∧␈↓␈↓ βD00520   A SPECIFICATION OF THE LINE NUMBER(S)
␈↓"∧␈↓ α∧␈↓␈↓ βD00530   TO BE AFFECTED BY THE COMMAND.
␈↓"∧␈↓ α∧␈↓␈↓ βD00540   IF YOU TYPE ONE NUMBER, ONLY THAT LINE
␈↓"∧␈↓ α∧␈↓␈↓ βD00550   WILL BE AFFECTED, BUT IF YOU TYPE A PAIR
␈↓"∧␈↓ α∧␈↓␈↓ βD00560   OF NUMBERS SEPARATED BY A COLON <":">
␈↓"∧␈↓ α∧␈↓␈↓ βD00580   THEN THE COMMAND WILL AFFECT EACH LINE
␈↓"∧␈↓ α∧␈↓␈↓ βD00590   IN BETWEEN AND INCLUDING THE TWO NUMBERS.
␈↓"∧␈↓ α∧␈↓␈↓ βD00595   (THE "I" COMMAND ONLY TAKES A SINGLE NUMBER.)
␈↓"∧␈↓ α∧␈↓␈↓ βD00596
␈↓"∧␈↓ α∧␈↓␈↓ βD00600   THE OTHER COMMANDS THAT YOU MAY GIVE
␈↓"∧␈↓ α∧␈↓␈↓ βD00700   TO SOS ARE "E" FOR EXIT,
␈↓"∧␈↓ α∧␈↓␈↓ βD00800   "W" FOR SAVE-THE-WORLD,
␈↓"∧␈↓ α∧␈↓␈↓ βD00900   AND "N" FOR RE-NUMBER THE LINES.
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓N␈↓
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓P100␈↓:*
␈↓"∧␈↓ α∧␈↓␈↓ βD00100   WHEN YOU EDIT A FILE WITH SOS,
␈↓"∧␈↓ α∧␈↓␈↓ βD00200   YOU MAY PRINT, INSERT, DELETE AND
␈↓"∧␈↓ α∧␈↓␈↓ βD00300   REPLACE LINES OF TEXT IN YOUR FILE.
␈↓"∧␈↓ α∧␈↓␈↓ βD00400   AT STANFORD THERE IS A SPECIAL "Z"-COMMAND.
␈↓"∧␈↓ α∧␈↓␈↓ βD00500
␈↓"∧␈↓ α∧␈↓␈↓ βD00600   THESE COMMANDS ARE ABBREVIATED, RESPECTIVELY,
␈↓"∧␈↓ α∧␈↓␈↓ βD00700   BY THE LETTERS "P", "I", "D", "R" AND "Z".
␈↓"∧␈↓ α∧␈↓␈↓ βD00800
␈↓"∧␈↓ α∧␈↓␈↓ βD00900   THESE LETTERS MUST BE FOLLOWED BY
␈↓"∧␈↓ α∧␈↓␈↓ βD01000   A SPECIFICATION OF THE LINE NUMBER(S)
␈↓"∧␈↓ α∧␈↓␈↓ βD01100   TO BE AFFECTED BY THE COMMAND.
␈↓"∧␈↓ α∧␈↓␈↓ βD01200   IF YOU TYPE ONE NUMBER, ONLY THAT LINE
␈↓"∧␈↓ α∧␈↓␈↓ βD01300   WILL BE AFFECTED, BUT IF YOU TYPE A PAIR
␈↓"∧␈↓ α∧␈↓␈↓ βD01400   OF NUMBERS SEPARATED BY A COLON <":">
␈↓"∧␈↓ α∧␈↓␈↓ βD01500   THEN THE COMMAND WILL AFFECT EACH LINE
␈↓"∧␈↓ α∧␈↓␈↓ βD01600   IN BETWEEN AND INCLUDING THE TWO NUMBERS.
␈↓"∧␈↓ α∧␈↓␈↓ βD01700   (THE "I" COMMAND ONLY TAKES A SINGLE NUMBER.)
␈↓"∧␈↓ α∧␈↓␈↓ βD01800
␈↓"∧␈↓ α∧␈↓␈↓ βD01900   THE OTHER COMMANDS THAT YOU MAY GIVE
␈↓"∧␈↓ α∧␈↓␈↓ βD02000   TO SOS ARE "E" FOR EXIT,
␈↓"∧␈↓ α∧␈↓␈↓ βD02100   "W" FOR SAVE-THE-WORLD,
␈↓"∧␈↓ α∧␈↓␈↓ βD02200   AND "N" FOR RE-NUMBER THE LINES.
␈↓"∧␈↓ α∧␈↓␈↓ βD*␈↓↓E␈↓

␈↓"∧␈↓ α∧␈↓␈↓ βDEXIT
␈↓"∧␈↓ α∧␈↓␈↓ βD↑C
␈↓"∧␈↓ α∧␈↓␈↓ βD.