医学ppt--mod_sc

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1、8LoggingIn和通常的步骤VersionG.0151434SModule2Slides9一个标准的终端对话Login验证自己和获得许可.执行命令来完成工作.Logoff来终断你的连接.a566910login:user1LoginPassword:WelcometoHP-UXLogin信息EraseisBackspaceKillisCtrl-U$date执行任务FriJul111:03:42EDT1994$othercommands$exitor+Logoutlogin:ReturnCtrldReturnLoggingIn和Outa68920

2、11Shell–命令的表示可执行程序语言命令substitution管道I/O重定向文件名生成可执行命令环境设置变量分配VariablesubstitutionShella5661112命令行格式a5661213二次提示a5661314手册a56614HP-UX参考手册包括:章节Section1:Section1m:Section2:Section3:Section4:Section5:Section7:Section9:代号和描述用户命令系统维护命令(更正规的格式是Section8)系统调用函数和函数库文件格式MiscellaneousTopic

3、s特殊设备文件目录15手册内容a56615名子语法描述EXTERNALINFLUENCES网络特性返回值诊断错误例子警告附注作者文件其它BUGSSTANDARDSCONFORMANCE16Online手册语法:man[-k

4、X]keyword

5、commandX是手册章节的号码例子:$mandateDisplaythe"date"manpage.$man-kcopyDisplayentrieswithkeyword"copy".$manpasswdDisplaythe"passwd"manpage-Section1.$man4passwdDispla

6、ythe"passwd"manpage-Section4.Usetoviewnextpage.Usetoviewnextline.Usetoquitthemancommand.a689117一些开始的命令idDisplayyouuserandgroupidentifications.whoIdentifyotherusersloggedontothesystem.dateDisplaythesystemtimeanddate.passwdAssignapasswordtoyouruseraccount.echoDisplaysimplemessag

7、estoyourscreen.bannerDisplayargumentsinlargeletters.clearClearsterminalscreen.writeSendsmessagestoanotheruser'sterminal.mesgAllows/deniesmessagestoyourterminal.newsDisplaythesystemnews.a6503018id命令语法:idDisplaysuserandgroupidentificationforsession例子:$iduid=303(user3)gid=300(cla

8、ss)注:The‘gid’istheprimarygroup.Iftheuserbelongstoadditionalgroups,thesearelistedattheendas‘groups’a689219who命令Syntax:who[ami]ReportsinformationaboutuserswhoarewhoamicurrentlyloggedontoasystemExamples:$whoroottty1p5Jul0108:01user1tty1p4Jul0109:59user2tty0p3Jul0110:01$whoamiuser

9、2tty0p3Jul0110:01$whoamiuser2a5661920date命令Syntax:dateReportsthedateandtimeExample:$dateFriJul111:15:55EDT1998a668121passwd命令Syntax:passwdAssignsaloginpasswordExample:$passwdChangingpasswordforuser3Oldpassword:Newpassword:Re-enternewpassword:PasswordRestrictions:minimumofsixch

10、aractersatleasttwoalphacharactersatleastonenon-alphacharacter