uni课后习题考试内容

UNIX课后习题考试内容

Thefirstchapter,UNIXoperatingsystemoverview

1.Whatistheoperatingsystemandlisttheoperatingsystem

youknow?

2,themainfunctionsoftheoperatingsystem?

3,whatisUNIX?

Thetwofactionsofthe4andUNIXeditions?

5,whichpartoftheoperatingsysteminteractsdirectlywith

thehardware?

6whichpartoftheoperatingsystemperformsuserswitching?

A.ShellB.Kernel

7.WhatisthemostusededitorontheUNIXplatform?

8.Writethenameofthegraphicaluserinterfaceforthetwo

AIX

9,AIXonlysupportsthefilesystemontheharddisk.(T/F)

Whatarethefunctionsof10andShel1,andwhatarethecommon

ShellonUNIX?

Thefirstchapter,UNIXoperatingsystemoverview

1,theoperatingsystem(OperatingSystem,referredtoasOS)

isthecontrolandmanagementofcomputersystemsinvarious

hardwareandsoftwareplatform,theuserinterfaceofthe

computer,toprovideuserswithaconvenientandscalable

workingenvironment.Commonoperatingsystems:DOS,Windows,

Unix,Linux,Mac,OS,X,Vxworks

2theoperatingsystemisacollectionofsystemsoftwarethat

controlstheoperationofotherprograms,managessystem

resources,andprovidestheuserwithaninterface.Themain

functionsincludefilemanagement,processandprocessor

management,devicemanagement,storagemanagement,network

managementandsoon,whichareimplementedbythekernelof

theoperatingsystem

3,narrowandbroadconcepts,narrowconcepts

UNIXrefersonlytotheoperatingsystemkernel(Kernel)

Thekernelisresponsibleforcontrollingandmanagingcomputer

resources

Multipleusersareaccessible

Responsiblefortheprocesscreation,control,scheduling,

memoryandperipheralsfortheprocess

Providesfilesystemmanagementfunctions

Generalizedconcept

UNIXnotonlyreferstothesystemkernel,itisanapplication

environmentandprogrammingenvironment,andprovidesawealth

ofsoftwaredevelopmenttools,includingeditors,compilers,

debuggingtools,databases,andsoon

Anoperatingsystemdevelopedforapplicationdevelopers

Anoperatingsystemthatprovideshardwareportability,device

independentfilesystems

Apowerfulmultitasking,multi-useroperatingsystem

4,1)Baerlaboratoryversion:version1-7,SystemII,III,IV,

VUNIXSystemVRelease4.2(SVR4.2)AIXtoday,SCOUNIX2)

UniversityofCaliforniaatBerkeleycomputersystemsresearch

group(CSRG)andBSDUNIX(BerkeleySoftwareDistributions)of

4.3BSDFreeBSDtoday,Solarisversionetc.ontheUNIX

workstationsgenerallybelongtothisfaction

5,Kernel6,A7,VI8,AlXwindows,Common,Desktop,Environment

(CDE)

9,F,AIXsupportdiskfilesystem,CDfilesystem,networkfile

system

Mount-a

Mount/etc/filesystems?

Rebootsystem

Eachfilesystemisloadedseparately

10,thefunctionofSHELL??usercommands,commandinterpreter,

programminglanguage,processcontrol,andcanbecustomized

features:wildcards,commonvariablesinSHELL?Bourne?Shell:

Baerisdevelopedinthelaboratory??BourneShell:BASH:GNU

BourneAgainisShell?Bourne?Shell:compatiblewithBourne

ShellatmostthecontentofBourne??Shell:developmentonthe

BSDsystem,

SyntaxissimilartotheClanguage

Thesecondchapter,UNIXbasicoperationcommand

1,loginUNIXsystem,willbedisplayedontheuserpassword

password.(T/F)

2.WhataresomeofthewaystoquittheUNIXsystem?

3,howtomodifytheuser,sloginpassword?

Whatistheformatofthe4andUNIXcommands?

5.Whichshortcutcanyouusetoaborttheexecutionofa

command?

6whichofthefollowingUNIXcommandsiscorrectinsyntax?

A.$mailnewmail-fB.$mailfnewmailC.$-fmailD.$mail-f

newmail

7,whatcommandtosendmailtoothers?

8whichcommandscancommunicatewithotherusersonthesystem?

9,whatdoescommandcal8do?

10whichofthefollowingcommandsfindtheloggedonuseron

thesystem?

A.$,who,am,iB.$,whoC.$,finger,everyoneD.$,finger,

username

Thesecondchapter,UNIXbasicoperationcommand

1,F2,<ctrl+d>,orexitorlogout3,passwd4,commandoptions

parameters,themiddlemusthavespaces5,<ctrl+c>6,D7,mail,

username8,talk,write,wall9,showad8calendar10,B,the

Thethirdchapter,documentandtexteditor

1.Whichcommandcandisplaythehelpmanualforthecommand?

2whatarethepartsofman，sinformation?

3,howtofindandprintrelatedcommands?

4,theAIX6.1onlinedocumentsstoredin____,anyother

computerusingabrowseronthenetworkcalled____.

5,howdoyoustarttheAIXdocumentfromthecommandline?

WhatkindofworkdoesandVIhave?

Howdoyouswitchtocommandmodein7andVI?

8whichofthefollowingcommandsallowuserstoentertextin

Vi?

A.,a,B,,x,C,,I,D.,DD

9,intheVIcommandmode,presstheUbuttonrepeatedlyto

cancelallpreviousinputcommands(T/F)

10.VIcanfindandreplacethepatternsspecifiedinthefile

(T/F)

Thethirdchapter,documentandtexteditor

1,man2,manhelpinformationconsistsofthefollowingparts:

Purpose(commandlinedescription)Syntax(commandsyntax,all

theoptionsandparameters(Description)todescribethe

functionandhowtousethecommand(Flags)commanddescription

(Files)commandrelatedfiles(Related)Informationresources

andinformationrelated)3,man-K,print4documentserver,

client5,infocenter6,documenteditingmodeandcommandmode,

extension7,press<esc>8,A,C9,F,ucommandcanonlyrevoke

previouslyacommandoftheoperation,10T

Thefourthchapter,UNIXfilesystem

1.Usetheexampleofthedirectorystructureinthecourseand

use/homeasthecurrentdirectory.HowtoaccesstheSubafile

inthePGMsdirectory,andexpressitintwoways:absolutepath

andrelativepath.

2.Whatisthedifferencebetweenthenameofthepath

indicated?

What'sthefunctionof3andcd..?

4,rmdirdeletedirectory,whataretherequirements?

5,LScommonoptionsandspecificmeaning?

6whatarethefollowingcommands?

1)$/home/team012CD)$CPfilelfile23)$MVfilelnewfile4)$ln

newfilemyfile?

7,whichcommandscanviewthecontentsofthefile?

8,reportafilepermissionsisrwxr-xr-x,howtouse8

hexadecimalrepresentationofthefilepermissions?

9,usingsymbolicnotationtochangetheoriginalpermissions

ofthereportafilerwxr-xr-xtorwxr-R-?

What'sthefunctionof10andumask?

Thefourthchapter,UNIXfilesystem

1,theabsolutepathpathrelativetoteam03/pgms/suba2,

/home/team03/pgms/subasaid.Thecurrentdirectory.Theparent

directory3,saidswitchtothetwoleveldirectory,4empty

directory,thecurrentdirectoryusersinthedirectory

directory5,LScommonoptionsandimplicationsareasfollows:

-athe-idisplayIdisplayhiddennodenumber-1display

detailedinformation-Rrecursivefiledisplaydirectoryand

subdirectoryunderthe-ddisplayallcontentdirectoryfile

information6,1)/home/teamOlswitchtothecurrentworking

directory2)copythefilelfiletoFile2twofileisthesame

content,twodocuments,3)renamethefilelfiletonewfile4

filemyfile)createhardlinksfornewfiletwofiles,thesame

content,thesamefileis7,cat,PG,more8,Chmod7559,the

defaultpermissionsforgo-xreportalO,setthesystemoruser

createddocuments

Thefifthchapter,UNIXprocess

1,whatistheprocess?

2,whatarethecircumstancesoftheprocess?

3.Whendoyouneedtousethedotnotationtoexecuteshell

scripts?

4.Howdoyoupassavariablevaluetoachildshell?

5、whatisthevalueofXafterthefollowingstepsare

performed?

1)((login,shell,...)2)$ksh3)$x=504)$exportx5)$<ctrl-d>

6,howdoyoudisplaythedetailsoftheprocessthattheuser

isrunning?

7,ordinaryuserscanonlykilltheirownoperations,cannot

killotherusersofthejob(T/F)?

8,howdoyouforcetheinterruptionoftheexecutionofa

process?

9.Whydoesittakealongtimetodothejob,andit'sbetter

toexecuteitinthebackgroundwiththenohupcommand?

10.WhatistheendofthesystemprocessintheUNIXsystem?

Thefifthchapter,UNIXprocess

1,theprocessisaprogramfortheimplementationofasetof

data,theprocessisthesmallestunitofresourceallocation

inthewholesystem,istheprocessofsystemcallsystem,the

smallestunitof2processorschedulingandprocessenvironment

include:programorscript,therelateddata,openfile,

directory,andthecurrentusergroupID,processID(PID),the

parentprocessID(PPID),3,whentheprogramvariablesneed

shellscripttochangethecurrentvalueofthevariableshell

4,export5,xvalueofthevariablenameandexecutionshell

beforetheexecution,ifnotinfrontofsetXvalue,thenthe

valueofXisstillnotset6,PSEF7,T8,kill-9pid9,the

executiveterminaloperationdoesnotoccupytheusersinthe

backgroundwithnohup,andtheusercanalsocontinuetoexit

thesystem.10,daemon

ThesixthchapterisUNIXShell

1.Whatisthenameofthefilethatmatchesthefollowing

command?$LS??[...A-z]*[0-9]t!

2.WhatarethestandarddocumentsinUNIX,whatarethe

correspondingequipment?

3.Whatarethestandardinputs,standardoutput,andstandard

errorsforthefollowingcommands?

1)$catfilel2)$mailTim<letter3)$cat.Profile>newprofile

2>1

4,usethecatcommandtodisplaythecontentsoffilea,and

requirethattheoutputbedefinedtodifferentpositionsand

writerelevantcommands.

1)outputissenttofilefileb,errorsenttofilec2),output

anderroraresenttofileb3together,outputissenttofileb,

anderrormessagesarenotdisplayedanddiscarded.

5,assumethattheuser,shomedirectoryis/home/john,theuser

iscurrentlyinthedirectoryis/home/john/doc,thedirectory

hasAA,BB,CCthreefiles,whatistheoutputofthefollowing

command?

1)$pwd2)$echo"Homedirectoryis$H0ME'Homedirectoryis3)

$echo$HOME'4$echo"Currentdirectory)is'pwd'5)"$echo”

Currentdirectoryis(PWD)$6)$echo"Filesinthisdirectory

are*7)*$HOME8)$echo$echothe

6,whatistheroleofthefollowingcommand$echo"Todayis

dateandwhoWC-1usersareloggedin”

7,howtoviewthecurrentshellPID

8,thefollowingshellscripttocompletewhatfunction

TERMTYPE=$TERMif[$TERMTYPE]="thenif!”[-f

/home/teamOl/customizedscript]then

/home/team01/customized_scriptelseechoNocustomizedscript

availablefielseechoYoudo!NothaveaTERMvariablesetfi!

9,writeashellscript,youcanenter2parameters,andtheir

productisdisplayed

10.Writeashellscriptthatlistsallthefilesinthe

specifieddirectoryandcopiesthemtoanotherdirectory

ThesixthchapterisUNIXShell

1,thefilenametosatisfythefollowingconditions:thefirst

3charactersisacharacterofanycharacterfourthcharacter

isnotA-Zinthenext0ormoreofanycharacterlastsecond

charactersinthe[0-9]characteristhelastcharacterist

2,UNIXstandardfilesarestandardinput,standardoutputand

standarderroroutput,respectively,correspondingtothe

keyboard,screen,screen

3,theresultsareasfollows:1)thestandardkeyboardinput:

standardoutputscreen:standarderror:2)standardscreen

input:letteroutput:standardfilescreenstandarderror:3)

standardscreeninput:standardkeyboardoutput:newprofile

standarderror:file1

4.Therelatedcommandsareasfollows:1)$catfilea>2>filec2)

$catfilea>fileb2>&13)$catfilea>fileb2>/dev/nullfileb

5,theoutputresultsareasfollows:/home/john/docHome

directoryis/home/johnHomedirectoryin$HOMECurrent

directoryis/home/john/docCurrentdirectoryis

/home/john/docFileinthisdirectoryare*aaBBCC/home/john*

6,displaysthecurrentdateofthesystemandthenumberof

usersthathavebeenloggedin

7,$$ehco

8,settheTERMTYPEvariablevalueisequaltotheTERMvariable,

ifthevariableisnotnull,thenthescriptnamed

customized_scriptelookupin/home/teamOl,ifthescriptis

executedifitdoesnotexist,isnotfound.

IftheTERMTYPEvariableisnull,theTERMvariableisnot

displayed.

9,theexpr$1$2

10,#/bin/sh#thisscriptisusedto!Listthecontentofthe#

sourcedirandcopythemtothetargetdirif-Itthenecho$#

[2];usage:$0;sourcediraimdirelsecd$lecho"thecontentz，

of$1is:〃LS-lep-rf*$2fi

Theseventhchapter,customuserenvironment

1,whenuserslogin,thesystemwillreadwhichfilestoset

theuser'senvironment?

2.Whichfiledefinesthesystemlevelenvironmentvariables?

3,whichfilescanusersmodifytocustomizetheirenvironment?

4,.Kshrcfilewhatrole?

Whatistheroleofthe5andPSIvariables?

Whatistheroleofthe6andTERMvariables?

Whatistheroleofthe7andPATHvariables?

What'sthefunctionofthe8andaliascommands?

9.HowdoIcallthehistorycommand?

10,howtocompiletheClanguageprogramunderAIX?

Theseventhchapter,customuserenvironment

1,/etc/environment,/etc/profile,$H0ME/.profile2,

/etc/profile3,$H0ME./profile4,kshrcfileisusedtosetup

theShel1environment,eachsubshel1startedtoreadthe.Kshrc

file5,thedefinitionofthesearchpathmaincommandprompt

6,definethetypeoftheuserterminal7,definition8,

executingthecommandsetanddisplaycommandalias,instead

ofalongstringofcommandsto9,checkthesimplifiedinput

byFC-Lwithasimplestring,Rplusserialnumberorthefirst

lettercallhistorycommand10,downloadandinstalltheGCC

compiler

Theeighthchapter,UNIXutilities

1.Useacommandtofindallthefilesthatstartwith"UNIX"

onthesystem.

2,what'sthefunctionofthefollowingcommand?-efgrep-w

root$PS||grep-wNetscape

3,what'sthefunctionofthefollowingcommand?-1/home

egrep'txt$$LS||team01$,|sort-r+7tail+4head-5

4.Thefindcommandsearchesfortheentiredirectorytreeunder

thedevelopeddirectory.(T/F)

5.Themetacharactersusedinthefindcommand,ifyouadd

quotationmarks,shellwillfirstexpandthecharacters,and

thenhandthemtothefind.(T/F)

6.Whichofthefollowingcommandsdeterminesthetypeof

document?

A.,cmpB.,diffC.,fileD.,dircmp

7,diffcanonlycomparetextfiles.(T/F)

8,compresscommandcompressionfiles,willdeletetheoriginal

file,andcompressedfilesplus.Zsuffix.(T/F)

9,UNIXenvironment,youcannotdirectlyextractthecontents

ofcompressedfileswithoutdecompression.(T/F)

10.Displayanonprintcharacterinadirectoryorfile.Which

commandisthefollowing?

A.,LS,-liB.,cat,-vteC.,diff,-cD.,CMP

Theeighthchapter,UNIXutilities

1,find/-name"UNIX*"2,containingthewordsrootand

NetscapeinPS-EFoutputprocesswithinformationinthe

processofline3,listthedetailedinformationunderthe/home

directoryofallfilesendingwithtxtorteamOl,sortedby

eighthfieldsforthereverse,4-8display.4,T5,F6,C7,T8,

F,thesuffixnameshouldbe.Z(uppercase)9,F,usingthezcat

command10,B

TheninthchapterisAIXgraphicaluserinterface

1,howdoyoustopXserverandallowallotherhoststoconnect?

2,howdoyoustarttheXWindowsenvironment?

3.HowdoIoutputthelocaldisplaytotheremoteXclient?

4,ifintheAlXwindowsenvironment,thefollowingcommands

whatrole?Xclock,-bg,red,-fg,white&

5,startanewaixtermintwoways.

6、supposetherearetwohosts,syslandsys2,executing

commandsinthesys2environmentofAlXwindows:rexec,sysl,

xclock,-dsys2:0.Whatisthefunctionofthiscommand?

7,howtoquicklycustomizetheuser(sAlXwindowsenvironment?

8whichofthefollowingistheconfigurationfiletostart

usingintheCDEdesktopenvironment?

A.,.ProfileB.,.XdefaultsC.,.DtprofileD.,.Xinitrc

9,CDEisauniversaluserinterfacedesignedforUNIX

environments.(T/F)

10,anyenvironmentvariablein.ProfilewillbeusedintheCDE

environmentbydefault(T/F)

11,connectionquestions:

A.loginmanager_canstartthedttermB.frontpanel_can

usetheonlinedocumentationC.—personalapplicationused

tostartdevice"customCDED.filemanager_applicationE.

applicationmanager_maintainmultiplesessionsdesktop

layoutF.stylemanager_providesgraphicalinterfacefile

managementG.sessionmanager_managementapplication

managementH.helpfor_useridentityidentification

TheninthchapterisAIXgraphicaluserinterface

1,xhost-2,startx3,settheDISPLAYvariablefortheremote

hostname:0.04,startthesimulationclock,setthebackground

colortored,whiteastheforegroundcolor5,fromtheroot

menuchoosenewwindowaxiterm6,syslxclock7,customdisplay

fromtherootmenuonthesys2fromthecommandlinein

customzing,toolwillsavetheusercustomizedsettingstothe

user，shomedirectoryconfigurationfile.8,C9,T10,

F,.Profile,.Dtprofilemustbecanceledbeforethecommentscan

beeffective.11,logmanagerA._c_canactivatethedttermB.

_h_frontpanelcanusetheonlinedocumentationC.personal

application_f_tostartdevice“customCDED.filemanager_b_

E.applicationmanager_g_maintainmultiplesessionsdesktop

layoutF.stylemanagerdprovidesagraphicalinterfaceG.

filemanagementsessionmanager_e_H.managementhelpmanager

_a_useridentityidentification

TheeleventhchapteristheoverviewofAIXsystemmanagement

1.WhatproductsdoestheIBMserverfamilyinclude?

A.,System,xB.,System,pC.,System,iD.,System,Z

WhichofthefollowingstatementsaboutSystemPiscorrect

about2?

TheA.serverB.functionIntelarchitectureofthepowerful

UNIXC.systemhighlyintegratedcommercialD.serverdowntime

basedonlargeserverhighavailabilityofzero

3,whatisRISC,whatarethecharacteristics?

4,whatisCISC,whatarethecharacteristics?

5,thattypeofadaptercanbeusedtocommunicatewithlogical

partitions

A.asynchronouscard,B.graphicscard,C.Ethernetcard

6.Whatarethehardwareresourcesinthelogicalpartition?

A.processor,B.memory,C.adapter,D.harddisk

7,fortheAIXoperatingsystem,theadapterinthelogical

partition,

Thatcanbeeitherphysicalorvirtual.(T/F)

8,thehardwareresourcesofthelogicalpartitionsonAIX6

canbedynamicallyallocatedwhentheoperatingsystemis

running(T/F)

Whatarethefeaturesofthe9andAIXoperatingsystems?

The10andSucommandsallowcommonuserstogainroot

privileges.(T/F)

11,tomaintaintheUNIXsystem,andgenerallydirectlyuseroot

userlogin(T/F)

TheeleventhchapteristheoverviewofAIXsystemmanagement

1,ABCD2,B3,reducedinstructionsetprocessor,RISCfeatures:

fewerinstructions,eachinstructionusingstandardword

length,shortexecutiontime.4,complexinstructionset

processor,CISCfeatures:thenumberofinstructionsismore

complex,eachinstructionwordsizeisnotequal,each

instructioncanperformanumberoflow-leveloperations.5,

C6,ABCD7,T8,T9,havethefollowingcharacteristics:1.

modularkernel2.dynamicswitchcore(PageableKernel)input

andoutput3.multi-threadedkernel4.efficient5.real-time

processing6.logicalvolumemanagement(LVM)7.(JFS2)8.

systemlogfilesystemmanagementinterfacetool(SMIT)9.Linux

compatibility10,T,usersmustknowtheuser'spassword,Froot

11

Thetwelfthchapterisaboutsystemmanagementtools

1.WhichofthefollowingisthemethodofAIXsystem

management?

A.SMITtools,B.,Web-based,System,Managertools,C.,IBM,

System,directorD.,systemcommands

2,ODMisaAIXuniquemanagementdatabase,generallymanual

tomodifythecontentofODM(T/F)

3,howdoyourunthecommandintheSMITadministrationtool?

4,howdoyouseethequickpathintheSMITadministrationtool?

5.HowdoyouinterceptthecurrentscreenintheSMIT

administrationtool?

6,howcanyoutemporarilyexittoshellintheSMITmanagement

tool?

7,intheSMITmanagementtools,howtoreturntothenextlevel

menu?

8.HowdoyouseethecommandscriptstorunintheSMIT

administrationtool?

9.HowdoyoustarttheSMITcharacterversionintheXwindow

environment?

10whichofthefollowingarethelogfilesfortheSMITtool?

A.,smit.logB.,.Sh_historyC.,smit.scriptD.,.Profile

Thetwelfthchapterisaboutsystemmanagementtools

1,ABCD2,F,SMITsystemmanagementoperationandthehigh

commandwillautomaticallymodifytheODMcorrectly,manually

modifytheverydangerous3,runningthecommandenter4,F8

orESC+85,seethefastpathofF8orESC+86,theinterception

ofthecurrentscreentemporaryexittotheshellF9orESC+9

7,thereturnonasingleF3orESC+38.Checkthecommandto

runthescriptF6orESC+69,SmittyorSMIT-CIO,AC

Thethirteenthchapter,systemstartupandshutdown

Whatkindsofstartupmodesarethereinthe1andAIXsystems?

2,whenthesystemstarts,theconsoleappearsinturnfive

devices,presswhichkeycanentertheSMSmode?

A.,FIB.,F2C.,F5D.,F6

3.Whenthesystemstarts,fivedevicesareturneduponthe

console.Whichkeycanenterthesingleusermaintenancemode?

A.,FIB.,F2C.,F5D.,F6

4.Whenthesystemstarts,whichfiledoestheinitprocessneed

toread?

A.,/etc/rcB.,/etc/filesystemsC.,/etc/passwdD.,/etc/,

inittab

5,tomodifythesystemstartupconfiguration,usuallyeditthe

/etc/inittabfileusingVI.(T/F)

6.Whichofthefollowingcommandscanswitchtherunninglevel

oftheAIXsystem?

A.,initB.,telinitC.,telnetD.,system

7whichofthefollowingcommandscanviewthesystembootlog?

A.,bootinfoB.,alogC.,IssrcD.,shutdown

8,whichtooldoestheAIXsystemusetostartorstopsystem

servicegroupsorgroupsofprograms?

9,theaverageusercanexecutetheshutdowncommandtoturn

offtheAIXsystem.(T/F)

10,theusercanexecutetheshutdowncommandonlyatthe

console.(T/F)

Thethirteenthchapter,systemstartupandshutdown

Innormalmode,SMSmode,maintenancemode,diagnosis,A3,C4,

2D,5F,donotadvocatedirecteditinginittabfiles,mkitab,

chitab,rmitabcommand,thecommandsyntaxchecktoensurethat

thecorrectfileformat6,AB7,B8,theuseofthesystem

resourcecontroller(SRC)9,F10,F

Thefourteenthchapter,AIX6installation

1,theAIXV6.1operatingsystemcanstartfromwhichofthe

followingmedia?

A.DisketteB.CD-ROMC.4mmtapeD.8mmtape

2,PreservationInstallwillsaveallthedataontheharddisk.

(T/F)

3.Thesystemhasbeenupgradedfrom5.1to6.1.Thesystem

requiresalluserandloginformationand/etc/passwd

configurationfilestoberetained.Whatkindof