《aix系统应用基础》练习题3-目录和

答案：BWhichfilenameisthemostappropriateforanAIX/UNIXfile?A.GreatDaneB.Yellow_lAbC.E*lk_HoundD.;Ridge-Back编辑ppt答案：BWhatisthecorrecttermforapathnamethatstartswithaslash(/)?A.relativepathnameB.absolutepathnameC.currentworkingdirectoryD.parentdirectory编辑ppt答案：BWhichddcommandisusingarelativepathnameasthesourceargumentandanabsolutepathnameasthetargetargument?A.ddif=/home/blueof=/B.ddif=blueof=/dev/rmt0C.ddif=blueof=./dev/fd0D.ddif=/home/greenof=/u/blue/green编辑ppt答案：AAftermanyoperationshavebeenperformedbyagivenAIXuser,whichcommandwillplacetheuserbackintotheirhomedirectory?A.cdB.cd.C.cd./homeD.cd../home编辑ppt答案：AWhichcommandwilldisplaythecurrentworkingdirectory?A.pwdB.dosdirC.oldpwdD.echo$DIR编辑ppt答案：AIfinhome(/home),whatcommandcanberuntodetermineifthefile“plants”isadirectorywithoutviewingthecontents?A.ls-ladplantsB.ls-faplantsC.ls-laplantsD.ls-iaplants编辑ppt答案：BWhatcommandcanberuntodetermineifsubdirectories,thatdonotbeginwitha“.”,existinthecurrentdirectory?A.ls-dB.ls-lC.ls-aD.ls-i编辑ppt答案：AWhatisrequiredtousethecpcommandtocopymultiplefilestoadirectory?thelastitemlistedforthecommandmustbe thedirectoryafullpathmustbespecifiedforeachiteminthe commandlistthetargetdirectorymustbelistedfirstandthe filesfollowalistoffilenamesisdirectedtostandardinand thenameofthedirectoryisassignedtostandarderror编辑ppt答案：BWhatcommandwouldbeusedtomovethecontentsofsubdirectorybarintothecurrentworkingdirectory?A.mvbar/*..B.mvbar/.C.mvbar/..D.mv/bar/*.编辑ppt答案：DWhatisthecorrectusercommandtoremovethelinkfoo?A.ln-sfoo/dev/nullB.lnfoogarbageC.unlinkfooD.rmfoo编辑ppt答案：CWhichofthefollowingAIXcommandsshouldbeusedtocreateadirectory?A.cpB.mvC.mkdirD.rm编辑ppt答案：DWhatisthepropercommandtoreadamultifileonepageatatime?A.catB.typeC.showD.more编辑ppt答案：AAdirectorywithfilescanbedeletedwithwhichofthefollowingcommands?A.rm-rB.mvdirC.touchD.rmdir编辑ppt答案：CWhichofthefollowingoptionsdescribesthemvcommand?A.itcanmoveonlysinglefilesoneatatimeitinvokesthecopycommandwiththe–m optionitcanmovemultiplefilesifitslastargument isadirectoryitmakesintermediatecopiesofthedataand renamestheoriginalfilebydeletingitandthen recreatingit编辑ppt答案：DWhathappenswithfilesremovedwiththermcommand?theyarenotrecoverableunlessrestoredwithin approximatelyfileminitestheyarestoredin/tmpanddeletedlaterbythe skulkerprogramtheyarerecoverablewithcommandsderived fromDOSD.theyarenotrecoverable编辑ppt答案：CWhichofthefollowingcommandsshouldbeusedtoremoveanemptydirectoryinthecurrentdirectorynamed–dir?A.rmdir-p-dirB.rmdir-p“-dir”C.rmdir---dirD.rmdir‘-dir’编辑ppt答案：AWhichcommandwillcreateasymboliclinkfootoafilenamedbar?A.ln-sbarfooB.ls-fbarfooC.ln-ffoobarD.ls-lbarfoo编辑ppt答案：CIfthecurrentworkingdirectoryisnotinthePATH,whatcommandisusedtoexecutefilefoofromthecurrentworkingdirectory?A.fooB.../fooC../fooD./foo编辑ppt答案：BWhichofthefollowingoptionsdescribestherm-icommand?A.itremovesandreportsthefilenamesitremovesB.itpromptsbeforeremovingeachfilespecifieditremovesfilesindiscriminatelyatthecurrentdirectorylevelitpromptsforthenamesoffilestoremoveonlyifwildcardsareusedinthecommandarguments编辑ppt答案：BWhichofthefollowingcommandsshouldbeusedtocreateadirectorynamedTestwithpermissionsrwxr-xr-xinthecurrentdirectory?A.mkdir-p755./TestB.mkdir-m755TestC.mkdir-mu+x~/TestD.mkdir-pm755test编辑ppt答案：AWhichcommandisusedtorenameafile?A.mvB.cp-rC.rmD.touch-r编辑ppt答案：AWhichofthefollowingAIXcommandsshouldbeusedtorenameadirectory?A.mvB.cpC.mkdirD.rmdir编辑ppt答案：BWhenusingthecpcommandtocopyfiles,whichflagshouldbeusedtocopysymboliclinks,ratherthancopyingfilestowhichsymboliclinkspoint?A.-lB.-hC.-fD.-p编辑ppt答案：CUsingtheKornShell,whatcommandwillplaceauserintheirpreviousworkingdirectory?A.cdB.cd..C.cd-D.cd.编辑ppt答案：AWhichcommandwouldchangethecurrentdirectorytotheuser’shomedirectory?A.cdB.pwdC.cd../homeD.cd./home编辑ppt答案：BWhichofthefollowingdescribesthefunctionofthe–pflagofthemkdircommand?itpreservesthepermissionsoftheparentdirectoryforsubordinatedirectoriesandfilesitcreatesmissingintermediatepathnamedirectoriesitcausesthemkdircommandtoexecuteasabackgroundprocessitpreservesthedataandtimestampinfo