[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fkIFKUuT4hU7UjyF7PbpQuQthso3h8yG3zk9N9_jg4ds":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":8,"question":15,"related":16,"source":22,"type":23},[],"2023-06-20 18:34:17",74527872,[],{"count":9,"courseId":10,"courseImg":11,"courseName":12,"workId":13,"workName":14},11,"6d8ffcdcea6cf6ff93c57382934f3ebb","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd761cc928ccca82a5c885864294007f8.jpg","Linux操作系统2023","work_27883289","练习6(11章)","完善程序,实现函数调用. #!\u002Fbin\u002Fbash testfile( ) #函数定义 {if [ -d $1 ] then echo "$1 is a directory!" else echo "$1 is not a directory!" fi return } (1) #函数调用",[17,24,29,34,39,44,49,52,57,62],{"answer":18,"createTime":5,"id":19,"options":20,"question":21,"source":22,"type":23},[],74527866,[],"程序填空,以实现逐个显示当前目录下sh文件的内容 #! \u002Fbin\u002Fbash (1) do echo "Filename: $file" cat $file done","v1",2,{"answer":25,"createTime":5,"id":26,"options":27,"question":28,"source":22,"type":23},[],74527867,[],"完善程序,以实现比较两个数大小 #!\u002Fbin\u002Fsh echo "Enter the first integer:" read first echo "Enter the second integer:" read second if (1) then echo "$first is greater than $second" elif (2) then echo "$first is less than $second" else echo "$first is equal to $second" fi",{"answer":30,"createTime":5,"id":31,"options":32,"question":33,"source":22,"type":23},[],74527868,[],"用test测试user1用户是否存在,不存在则创建一个并设置密码,存在则设置密码redhat",{"answer":35,"createTime":5,"id":36,"options":37,"question":38,"source":22,"type":23},[],74527869,[],"利用awk命令在屏幕输出\u002Fetc\u002Fpasswd文件第1行第7列内容",{"answer":40,"createTime":5,"id":41,"options":42,"question":43,"source":22,"type":23},[],74527870,[],"利用sed命令显示\u002Fetc\u002Ffstab文件的非注释行",{"answer":45,"createTime":5,"id":46,"options":47,"question":48,"source":22,"type":23},[],74527871,[],"完成程序,实现计算1-100的和. #!\u002Fbin\u002Fbash i=1 sum=0 while [ $i -le 100 ] do (1) (2) done echo The sum is $sum",{"answer":50,"createTime":5,"id":6,"options":51,"question":15,"source":22,"type":23},[],[],{"answer":53,"createTime":5,"id":54,"options":55,"question":56,"source":22,"type":23},[],74527873,[],"阅读以下程序,回答问题. #!\u002Fbin\u002Fbash count=0 for i in * do if test -x $i then count=`expr $count + 1` fi done echo Total of $count files executable 第(5)行语句作用是____________.该脚本程序的功能是____________",{"answer":58,"createTime":5,"id":59,"options":60,"question":61,"source":22,"type":23},[],74527874,[],"完善以下程序,实现判断当前目录下是否存在某文件的功能. #!\u002Fbin\u002Fbash echo "Enter a file name:" read file if (1) then echo "File $file exists." fi",{"answer":63,"createTime":5,"id":64,"options":65,"question":66,"source":22,"type":23},[],74527875,[],"用sed命令打印\u002Fetc\u002Fpasswd第1到第3行在屏幕输出"]