[bash袖珍参考手册].(bash.Pocket.Reference).Arnold.Robbins.文字版

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1、bashPocketReferencebashPocketReferenceArnoldRobbinsBeijing•Cambridge•Farnham•Köln•Sebastopol•Taipei•TokyobashPocketReferencebyArnoldRobbinsCopyright©2010ArnoldRobbins.Allrightsreserved.PrintedinCanada.PublishedbyO’ReillyMedia,Inc.,1005GravensteinHighwayNorth,

2、Se-bastopol,CA95472.O’Reillybooksmaybepurchasedforeducational,business,orsalespromo-tionaluse.Onlineeditionsarealsoavailableformosttitles(http://my.safaribooksonline.com).Formoreinformation,contactourcorporate/institutionalsalesdepartment:(800)998-9938orcorpo

3、rate@oreilly.com.Editor:MikeLoukidesProductionEditor:LoranahDimantProofreader:LoranahDimantIndexer:FredBrownCoverDesigner:KarenMontgomeryInteriorDesigner:DavidFutatoPrintingHistory:May2010:FirstEdition.NutshellHandbook,theNutshellHandbooklogo,andtheO’Reillylo

4、goareregisteredtrademarksofO’ReillyMedia,Inc.,bashPocketReferenceandre-latedtradedressaretrademarksofO’ReillyMedia,Inc.Manyofthedesignationsusedbymanufacturersandsellerstodistinguishtheirproductsareclaimedastrademarks.Wherethosedesignationsappearinthisbook,an

5、dO’ReillyMedia,Inc.wasawareofatrademarkclaim,thedesignationshavebeenprintedincapsorinitialcaps.Whileeveryprecautionhasbeentakeninthepreparationofthisbook,thepublisherandauthorassumenoresponsibilityforerrorsoromissions,orfordamagesresultingfromtheuseoftheinfor

6、mationcontainedherein.ISBN:978-1-449-38788-4[TM]1272386645ContentsTheBashShell1Conventions2History2OverviewofFeatures3InvokingtheShell4Syntax6Functions18Variables20ArithmeticExpressions36CommandHistory37ProgrammableCompletion41JobControl46ShellOptions47Comman

7、dExecution52Coprocesses53RestrictedShells54Built-inCommands55Resources109Acknowledgments110Index111vTheBashShellThispocketreferencecoversBash,particularlyversion4.1,theprimaryshellforGNU/LinuxandMacOSX.BashisavailableforSolarisandthevariousBSDsystems,andcanbe

8、easilycompiledforjustaboutanyotherUnixsystem.Thefollowingtopicsarecovered:•History•Overviewoffeatures•Invokingtheshell•Syntax•Functions•Variables•Arithmeticexpressions•Commandhistory•Prog