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📄 test.1

📁 操作系统设计与实现源码
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%!PS-Adobe-1.0%%Creator: devps (Pipeline Associates, Inc.)%%CreationDate: Fri Sep 13 13:04:38 1996%%Pages: (atend)%%DocumentFonts: (atend)/devps 180 dict def devps begin/res 10.000000 def/y_offset 843 def/X{exch}bind def/mm {transform round X round X itransform} bind def/r{rmoveto}bind def/m{moveto}bind def/l{lineto}bind def/rl{rlineto}bind def/st{stroke}bind def/gs{gsave}bind def/gr{grestore}bind def/cp{currentpoint}bind def/np{newpath}bind def/ct{curveto}bind defsystemdict /setpacking known { /savepacking currentpacking def true setpacking } if/m0{0 0 moveto}bind def/xc{//res div}bind def/yc{//res neg div //y_offset add}bind def/lc{yc X xc X l st}bind def/mc{yc X xc X m}bind def/el{gs /a X def a div 1 X scale cp np a xc 2 div 0 360 arc st gr}bind def/ar{cp 7 2 roll np xc 5 1 roll atan 3 1 roll atan X arc st}bind def/sp{yc X xc X 6 2 roll yc X xc X 6 2 roll yc X xc X 6 2 roll ct}bind def/V{//res neg div //y_offset addcurrentpoint pop Xm}bind def/H{//res div0 transform X round X itransform popcurrentpoint X popmoveto}bind def/h{//res div 0 r}bind def/v{//res neg div 0 X r}bind def/S{X H show}bind def/A{H //res div 1 index stringwidth pop sub 1 index length div 0 3 2 roll ashow}bind def/psize 10 def/height 0 def/cheight { height 0 ne { height } { psize } ifelse } bind def/slant 0 def/FF{findfont X dup 30 div 0 mm pop setlinewidth /psize X def    [psize 0 cheight slant sin slant cos div mul cheight 0 0]    makefont setfont}bind def/shade{gs /dy X def /dx X def np m 0 /dy rl /dx 0 rl 0 /dy neg rl /dx neg 0 rl closepath .9 setgray fillgr}bind def1 setlinecap/resolution res 72 mul def/startFig {	/SavedState save def	userdict maxlength dict begin	currentpoint transform	DocumentInitState setmiterlimit setgray setdash setlinejoin setlinecap		setlinewidth setmatrix	itransform moveto	/ury exch def	/urx exch def	/lly exch def	/llx exch def	/y exch 72 mul resolution div def	/x exch 72 mul resolution div def		currentpoint /cy exch def /cx exch def	/sx x urx llx sub div def	/sy y ury lly sub div def	sx sy scale	cx sx div llx sub	cy sy div ury sub translate		/DefFigCTM matrix currentmatrix def	/initmatrix {		DefFigCTM setmatrix	} def	/defaultmatrix {		DefFigCTM exch copy	} def	/initgraphics {		DocumentInitState setmiterlimit setgray setdash 			setlinejoin setlinecap setlinewidth setmatrix		DefFigCTM setmatrix	} def	/showpage {		initgraphics	} def}bind  def/clipFig {	currentpoint 6 2 roll	newpath 4 copy	4 2 roll moveto	6 -1 roll exch lineto	exch lineto	exch lineto	closepath clip	newpath	moveto}bind  def/doclip { llx lly urx ury clipFig } def/endFig {	end SavedState restore}bind  def/globalstart {	fontnum psize slant height resolution currentpoint 	pagesave restore gsave }bind  def/globalend {	grestore moveto	/resolution exch def /height exch def	/slant exch def /psize exch def /fontnum exch def	F	/pagesave save def}bind  def/fontnum 1 def systemdict /setpacking known { savepacking setpacking} ifend/BP{save mark devps begin m0/DocumentInitState [ matrix currentmatrix currentlinewidth currentlinecapcurrentlinejoin currentdash currentgray currentmiterlimit ] cvx def}bind def/EP{end cleartomark restore showpage}def/Encoding-1 256 array def0 1 255 {Encoding-1 exch /.notdef put} forEncoding-1 8#301 StandardEncoding 8#101 26 getinterval putinterval %A-BEncoding-1 8#341 StandardEncoding 8#141 26 getinterval putinterval %a-bEncoding-1 8#241 StandardEncoding 8#301 16 getinterval putinterval %accentsEncoding-1 8#373 StandardEncoding 8#365 1 getinterval putinterval %dotlessiEncoding-1dup 8#41 /copyright putdup 8#42 /registered putdup 8#43 /trademark putdup 8#44 /logicalnot putdup 8#45 /Eth putdup 8#46 /eth putdup 8#47 /Thorn putdup 8#50 /thorn putdup 8#51 /brokenbar putdup 8#52 /degree putdup 8#53 /divide putdup 8#54 /multiply putdup 8#55 /minus putdup 8#56 /onehalf putdup 8#57 /onequarter putdup 8#60 /threequarters putdup 8#101 /Aacute putdup 8#102 /Acircumflex putdup 8#103 /Adieresis putdup 8#104 /Agrave putdup 8#105 /Aring putdup 8#106 /Atilde putdup 8#107 /Ccedilla putdup 8#110 /Eacute putdup 8#111 /Ecircumflex putdup 8#112 /Edieresis putdup 8#113 /Egrave putdup 8#114 /Iacute putdup 8#115 /Icircumflex putdup 8#116 /Idieresis putdup 8#117 /Igrave putdup 8#120 /Ntilde putdup 8#121 /Oacute putdup 8#122 /Ocircumflex putdup 8#123 /Odieresis putdup 8#124 /Ograve putdup 8#125 /Otilde putdup 8#126 /Scaron putdup 8#127 /Uacute putdup 8#130 /Ucircumflex putdup 8#131 /Udieresis putdup 8#132 /Ugrave putdup 8#133 /Ydieresis putdup 8#134 /Zcaron putdup 8#135 /aacute putdup 8#136 /acircumflex putdup 8#137 /adieresis putdup 8#140 /agrave putdup 8#141 /aring putdup 8#142 /atilde putdup 8#143 /ccedilla putdup 8#144 /eacute putdup 8#145 /ecircumflex putdup 8#146 /edieresis putdup 8#147 /egrave putdup 8#150 /iacute putdup 8#151 /icircumflex putdup 8#152 /idieresis putdup 8#153 /igrave putdup 8#154 /ntilde putdup 8#155 /oacute putdup 8#156 /ocircumflex putdup 8#157 /odieresis putdup 8#160 /ograve putdup 8#161 /otilde putdup 8#162 /scaron putdup 8#163 /uacute putdup 8#164 /ucircumflex putdup 8#165 /udieresis putdup 8#166 /ugrave putdup 8#167 /ydieresis putdup 8#170 /zcaron putpop/Enc-dict 30 dict defEnc-dict /tmpstr1 50 string putEnc-dict /tmpstr2 50 string putEnc-dict /tmpstr3 50 string dup (Encoding-) exch cvs pop put/AEnc-def { % arguments: the original font's name, encoding nrEnc-dict begintmpstr2 cvs /Enc-no exch def % Remember the number in a stringdup /OrigName exch def % remember the namefindfont dup maxlength dict /newdict exch def % get dictionary for new font{ exch dup /FID ne   { exch newdict 3 1 roll put }   { pop pop } % Ignore FID   ifelse} forallnewdict begin/Encoding  tmpstr3 9 Enc-no putinterval tmpstr3 0 9 Enc-no length add getinterval  cvn load  def % Replace encodingcurrentdict /UniqueID known{ /UniqueID UniqueID Enc-no cvi 49999 mul add def } if % Derive New UniqueIDend % newdict/FNlength OrigName tmpstr1 cvs length def % convert name, remember lengthFNlength 1 add Enc-no length add stringdup 0 OrigName tmpstr1 cvs putintervaldup FNlength (-) putintervaldup FNlength 1 add Enc-no putintervaldup 0 tmpstr1 0 FNlength getinterval putinterval % Add old namecvn dup newdict /FontName 3 2 roll put newdict definefontend % Enc-dict} def/Times-Roman 1 AEnc-def pop/R-1{/Times-Roman-1 FF}def/Times-Bold 1 AEnc-def pop/B-1{/Times-Bold-1 FF}def/R{/Times-Roman FF}def/B{/Times-Bold FF}def/I{/Times-Italic FF}def%%EndProlog%%Page: 1 1BP/slant 0 def/height 0 def480 V10 R720(TEST)S970(\()S1012(1)S1070(\))S2696(Eighth)S(Edition)296 2989 A4877(TEST)S5127(\()S5169(1)S5227(\))S960 V9 R720(N)S722(NA)S790(AM)S858(ME)S940(E)S1080 V10 R1080(test,)S1270([)S10 R-11329(-)S10 R1411(test)S1576(for)S1719(a)S(condition)379 1789 A1248 V9 R720(S)S722(SY)S774(YN)S842(NO)S910(OP)S978(PS)S1030(SI)S1082(IS)S1115(S)S1368 V10 B1080(test)S10 I1270(expr)S1488 V10 B1080([)S10 I1152(expr)S10 B1369(])S1656 V9 R720(O)S722(OP)S790(PT)S842(TI)S900(IO)S933(ON)S1001(NS)S1069(S)S1776 V10 R(\(none\))263 1080 A1944 V9 R720(E)S722(EX)S780(XA)S848(AM)S916(MP)S998(PL)S1050(LE)S1108(ES)S1166(S)S2064 V10 B1080(test)S10 B-11257(-)S10 B1314(r)S1384(file)S10 R2080(#)S2155(See)S2326(if)S2413(\256le)S2567(is)S2659(readable)S2232 V9 R720(D)S722(DE)S790(ES)S848(SC)S900(CR)S962(RI)S1024(IP)S1057(PT)S1109(TI)S1167(IO)S1200(ON)S1268(N)S2352 V10 I1080(Test)S10 R1273(checks)S1573(to)S1677(see)S1832(if)S1920(\256les)S2114(exist,)S2355(are)S2505(readable,)S2898(etc.)S3067(and)S3238(returns)S3544(an)S3665(exit)S3842(status)S4097(of)S4207(zero)S4407(if)S4495(true)S4678(and)S(nonzero)324 4849 A5199(if)S2472 V1080(false.)S1346(The)S1528(legal)S1749(operators)S2149(are)S2712 V10 R-11440(-)S10 R1497(r)S1556(\256le)S2160(true)S2342(if)S2429(the)S2577(\256le)S2731(is)S2823(readable)S2832 V10 R-11440(-)S10 R1497(w)S1595(\256le)S2160(true)S2342(if)S2429(the)S2577(\256le)S2731(is)S2823(writable)S2952 V10 R-11440(-)S10 R1497(x)S1572(\256le)S2160(true)S2342(if)S2429(the)S2577(\256le)S2731(is)S2823(executable)S3072 V10 R-11440(-)S10 R1497(f)S1556(\256le)S2160(true)S2342(if)S2429(the)S2577(\256le)S2731(is)S2823(not)S2976(a)S3046(directory)S3192 V10 R-11440(-)S10 R1497(d)S1572(\256le)S2160(true)S2342(if)S2429(the)S2577(\256le)S2731(is)S2823(a)S2893(directory)S3312 V10 R-11440(-)S10 R1497(s)S1561(\256le)S2160(true)S2342(if)S2429(the)S2577(\256le)S2731(exists)S2985(and)S3155(has)S3314(a)S3384(size)S3566(>)S3648(0)S3432 V10 R-11440(-)S10 R1497(t)S1550(fd)S2160(true)S2342(if)S2429(\256le)S2583(descriptor)S3011(fd)S3120(\(default)S3459(1\))S3568(is)S3660(a)S3730(terminal)S3552 V10 R-11440(-)S10 R1497(z)S1567(s)S2160(true)S2342(if)S2429(the)S2577(string)S2831(s)S2895(has)S3054(zero)S3253(length)S3672 V10 R-11440(-)S10 R1497(n)S1572(s)S2160(true)S2342(if)S2429(the)S2577(string)S2831(s)S2895(has)S(nonzero)324 3054 A3403(length)S3792 V1440(s1)S1554(=)S1636(s2)S2160(true)S2342(if)S2429(the)S2577(strings)S2870(s1)S2984(and)S3154(s2)S3268(are)S3417(identical)S3912 V1440(s1)S1554(!=)S1670(s2)S2160(true)S2342(if)S2429(the)S2577(strings)S2870(s1)S2984(and)S3154(s2)S3268(are)S3417(different)S4032 V1440(m)S10 R-11543(-)S10 R1600(eq)S1720(m)S2160(true)S2342(if)S2429(the)S2577(integers)S2921(m)S3024(and)S3194(n)S3269(are)S3418(numerically)S3924(equal)S4152 V1080(The)S1264(operators)S10 B-11666(-)S10 B1723(gt)S10 R1807(,)S10 B-11859(-)S10 B1916(ge)S10 R2011(,)S10 B-12063(-)S10 B2120(ne)S10 R2221(,)S10 B-12273(-)S10 B2330(le)S10 R2403(,)S2455(and)S10 B-12627(-)S10 B2684(lt)S10 R2774(may)S2975(be)S3098(used)S3310(as)S3422(well.)S3674(These)S3943(operands)S4334(may)S4535(be)S4658(combined)S5082(with)S4272 V10 B-11080(-)S10 B1137(a)S10 R1239(\(Boolean)S1660(and\),)S10 B-11916(-)S10 B1973(o)S10 R2074(\(Boolean)S2494(or\),)S2688(!)S2798(\(negation\).)S3288(The)S3496(priority)S3849(of)S10 B-13984(-)S10 B4041(a)S10 R4142(is)S4260(higher)S4568(than)S4792(that)S4994(of)S10 B-15129(-)S10 B5186(o)S10 R5236(.)S4392 V1080(Parentheses)S1581(are)S(permitted,)411 1730 A2166(but)S2319(must)S2539(be)S2659(escaped)S3003(to)S3106(keep)S3321(the)S3469(shell)S3684(from)S3905(trying)S4170(to)S4273(interpret)S4640(them.)S4560 V9 R720(S)S722(SE)S774(EE)S832(E)S913(A)S915(AL)S983(LS)S1041(SO)S1093(O)S4680 V10 B1080(expr)S10 R1276(\(1\),)S10 B1444(sh)S10 R1539(\(1\).)S7903 V720(Page)S941(1)S4455(September)S4911(13,)S(1996)200 5061 A8143 VEP%%Trailer%%DocumentFonts: Times-Roman Times-Bold Times-Italic%%Pages: 1

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