[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fM33F-PG1uf0Z91S3xk8fuQHjktlXsriK8nX3M-hh0HQ":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-06-08 18:15:12",53536020,[8,9,10,11],"x键","q!键","q键","esc键",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},49,"8333dac3b4ede054e807e7f6a9df4dff","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbaf42a87c1a2ac3f880bfad4fd1cd7e7.jpg","Linux操作系统","exam_94476260","期中练习题-20班","在vi中,不对文件做修改,强制退出,按",[21,32,41,50,59,68,71,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],53536015,[25,26,27,28],"切换到当前目录","切换到根目录","切换到\u002Froot目录","切换到用户的home目录","关于"cd ~"命令,说法正确的是","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],53536016,[36,37,38,39],"\u002Fetc\u002Fpasswd","\u002Fetc\u002Fshadow","\u002Fetc\u002Fgroup","\u002Fetc\u002Fsecuretty","linux系统中存放加密用户帐号信息的文件是",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],53536017,[45,46,47,48],"普通用户可以利用passwd命令修改自己的密码","超级用户可以利用passwd命令修改自己和其他用户的密码","普通用户不可以利用passwd命令修改其他用户的密码","普通用户可以利用passwd命令修改自己和其他用户的密码","下面关于passwd命令说法不正确的是",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],53536018,[54,55,56,57],"手动执行指定的命令","定时执行指定的命令","查看系统中的命令列表","查看命令的帮助信息","关于"man"命令的作用是",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],53536019,[63,64,65,66],"创建由dirname命名的目录","创建由dirname命名的文本文件","删除由dirname命名的目录","删除由dirname命名的文本文件","关于"mkdir dirname"命令的作用是",{"answer":69,"createTime":5,"id":6,"options":70,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],53536021,[75,76,77,78],"删除dirname目录中的文件","删除dirname目录,删除时给予提示","只能删除空目录","递归强行删除dirname目录,及其目录下的所有文件","关于"rm -rf dirname"命令,说法正确的是",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],53536022,[84,85,86,87],"通过管道,将显示mailllog的文件到aaa文件中","通过管道,将maillog文件中含aaa的内容显示到标准输出中","显示所有包含"aaa"字符的行","显示所有maillog的内容给aaa的输出设备","关于"more \u002Fvar\u002Flog\u002Fmaillog|grep aaa"命令,说法正确的是",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],53536023,[93,94,95,96],"mv命令可以重命名文件","mv命令可以移动文件","mv命令可以复制文件","mv命令可以删除文件","下面关于命令"mv"命令,说法错误的是",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],53536024,[102,103,104,105],"cat -n","cat -e","cat -t","cat -a","利用cat命令查看文本文件的内容时要对所有的输出行进行编号的命令是"]