unix&linux shell programming i

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1、Unix/LinuxShellProgrammingIDec14th2011ShenWeiAgendaUnix/LinuxIntroduceShellIntroduceCommandLoginEnvironmentTips&TricksExercisesQ&AUnix/LinuxIntroduceShellIntroduceTheshellisacommandprogramminglanguagethatprovidesaninterfacetotheUNIX/LinuxoperatingsystemS

2、hellIntroduceShellIntroduceshBestPerformancebashBestman-machineinteractionkshBestcompatibilitycshProvidesClanguagesimilargrammaCommandBasicFileSystemProcessIO&PipeNetworkCommand-BasicwhoechoiddatewhichhostnamemanuptimeCommand–FileSystemlstouchcdmkdirmvrm

3、pwdlnCommand–FileSystemcatmorevichownchmodfindCommand-Processps&sleepjobsbg/fgnohupkillsubshellCommand–IO&Pipe

4、<><<>>tee012Command-NetworkpingifconfigtelnetftpsshnetstatscpnslookupLoginEnvironment/etc/profile$HOME/.profilestty.logoutEnvironmentVariableTi

5、ps&Tricks-SampleDeletethesefileswhichover7daysandsizethan20MinyouroutputfolderVIbasicpracticePutyourscripts(5)backgroundrunandmonitortherunningstatusCustomizeyourenvironmentbyprofileUsingftptoupload/downloadfileExercisesCustomizeyourlogoutenvironmentCrea

6、teyourbinfolderandlinksomecommandinitHowtokillyourSQLPLUSsessionPutyourscriptswithlogrecordbackgroundGettheIPandhostnamebyTNSnameExplainthe‘cat>catfile