Sams Teach Yourself Shell Programmin in 24 Hours.pdf

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1、SamsTeachYourselfShellProgrammingin24HoursIndexTableofContentsSamsTeachYourselfShellProgrammingin24HoursCopyrightIntroduction●HowThisBookIsOrganized●ConventionsUsedinThisBook●AbouttheAuthor●Dedication●AcknowledgmentsPartIIntroductiontoUNIXandShellToolsHour1:ShellBasics●What

2、IsaCommand?●WhatIstheShell?●Summary●Questions●TermsHour2:ScriptBasics●TheUNIXSystem●ShellInitialization●GettingHelp●Summary●Questions●TermsHour3:WorkingwithFiles●ListingFiles●ViewingtheContentofaFile●ManipulatingFiles●Summary●Questions●TermsHour4:WorkingWithDirectories●TheD

3、irectoryTree●SwitchingDirectories●ListingFilesandDirectories●ManipulatingDirectories●Summary●QuestionsHour5:ManipulatingFileAttributes●FileTypes●Owners,Groups,andPermissions●Summary●QuestionsHour6:Processes●StartingaProcess●ListingRunningProcesses●KillingaProcess(killComman

4、d)●ParentandChildProcesses●Summary●Questions●TermsPartIIShellProgrammingHour7:Variables●DefiningVariables●UnsettingVariables●EnvironmentVariables●Summary●Questions●TermsHour8:Substitution●FilenameSubstitution(Globbing)●VariableSubstitution●CommandandArithmeticSubstitution●S

5、ummary●QuestionsHour9:Quoting●QuotingwithBackslashes●UsingSingleQuotes●UsingDoubleQuotes●QuotingRulesandSituations●Summary●Questions●TermsHour10:FlowControl●TheifStatement●ThecaseStatement●Summary●QuestionsHour11:Loops●ThewhileLoop●TheforandselectLoops●LoopControl●Summary●Q

6、uestions●TermsHour12:Parameters●SpecialVariables●OptionsandArguments●OptionParsinginShellScripts●Conclusion●QuestionsHour13:Input/Output●Output●Input●FileDescriptors●Summary●Questions●TermsHour14:Functions●CreatingandUsingFunctions●SharingDataBetweenFunctions,anExample●Conc

7、lusion●QuestionsHour15:TextFilters●TheheadandtailCommands●Usinggrep●CountingWords●Summary●QuestionsHour16:FilteringTextUsingRegularExpressions●TheBasicsofawkandsed●Usingsed●Summary●QuestionsHour17:FilteringTextwithawk●Whatisawk?●UsingawkFeatures●Summary●Questions●TermsHour1

8、8:MiscellaneousTools●TheevalCommand●The:Command●ThetypeCommand●ThesleepCommand●The