命令cat file1 file2 file3把file1和file2组合成file3。
命令cat file1 file2 >file3把file1和file2组合成file3。
相关考题：
命令head－120file1file2的含义是:() A.同时显示文件file1和file2的前120行B.同时显示文件file1的前120行并且存入文件file2C.同时删除文件file1和file2的前120行
UNIX系统命令catfile1file2功能是( )。 A、将文件file2的内容添加到文件file1的末尾B、将文件file1的内容添加到文件file2的末尾C、连接文件file1和file2D、显示文件file1和file2
YouneedtorecommendafileaccesssolutionfortheTemplatesshare.Whichtwoactionsshouldyourecommend?() A.AddFile2asanamespaceserverfor\\fabrikam.com\dfs.B.Add\\File2\templatesasafoldertargetfor\\fabrikam.com\dfs\templates.C.IntheGroupPolicypreferencesofGPO2andGPO3，addnewmappeddrives.D.CreateaDFSReplicationgroupthatcontains\\File1\templatesand\\File2\templates.
有以下程序: include include include intmain() {fstreamfil 有以下程序：include ＜iostream．h＞include ＜fstream．h＞include ＜stdlib．h＞int main(){fstream filel，file2；char line[100]；filel．open("source．txt"，ios::in)；if(!file1){cout＜＜"Can't open file source．txt!"＜＜end1；abort()；}file2．open("dest.txt"，ios：：out)；if(!file2){cout＜＜"Can't open file dest．txt!"＜＜end1；abort()；}while(!file1．eof()){filel．getline(1ine，100)；file2＜＜line；file2＜＜end1；}filel．close()；file2．close()；return 0；}此程序实现的功能是【 】。
下列程序用于将源文件中的字母进行大小写转换,while的条件是【 】。includeinclude 下列程序用于将源文件中的字母进行大小写转换，while的条件是【 】。include＜iostream. h＞include＜fstream. h＞include＜iomanip. h＞void main( )}char ch;fstream filel, file2char fn1[10], fn2[10];cout＜＜"输入源文件名:";cin＞＞fn1cout＜＜"输入目标文件名:";tin＞＞fn2file1, open(fn1 ,ios: :in);file2, open(fn2, ios:: out);while(________){if(ch＞='a'ch＜='z')ch=ch-'a'+'A',file2, put(ch),}file1, close(),file2, close();}
有如下命令序列： SELECT 1 USE FILEl LIST CLOSE DATABASE SELECT 0 USE FILE2 LIST SELECT 0 USE FILE3 LIST SELECT 0 USE FILE4 执行以上命令序列后，FILE4所在的工作区是______。A．第1区B．第2区C．第3区D．第4区
Files ／tmp／file2 and ／tmp／file3 are hard linked to ／tmp／file1.What will the result be if a user makes changes to ／tmp／file2 at the same time another user tries to delete ／tmp／file1?() A.All three files will contain the updates and will remain available.B.All three files will be deleted and no changes will be made to /tmp/file2.C.Only /tmp/file2 will contain the updates, but /tmp/file3 will remain available.D.Both /tmp/file2 and /tmp/file3 will contain the updates and will remain available.
UNIX系统命令cat file1file2功能是（）。A、将文件file2的内容添加到文件file1的末尾B、将文件file1的内容添加到文件file2的末尾C、连接文件file1和file2D、显示文件file1和file2
如果newdir/file2文件不存在，但是目录newdir已存在，mvfile1newdir/file2命令将有什么结果？（）A、file1将被移动到newdir并重命名为file2B、file1将被复制到newdir并命名为file2C、file1将被删除D、将报错，因为以上不是有效的命令
命令head-120file1file2的含义是：（）A、同时显示文件file1和file2的前120行B、同时显示文件file1的前120行并且存入文件file2C、同时删除文件file1和file2的前120行
Files /tmp/file2 and /tmp/file3 are hard linked to /tmp/file1. What will the result be if a user makes changes to /tmp/file2 at the same time another user tries to delete /tmp/file1？（）A、All three files will contain the updates and will remain available.B、All three files will be deleted and no changes will be made to /tmp/file2.C、Only /tmp/file2 will contain the updates， but /tmp/file3 will remain available.D、Both /tmp/file2 and /tmp/file3 will contain the updates and will remain available.
You need to recommend a file access solution for the Templates share. Which two actions should you recommend？（）A、Add File2 as a namespace server for //fabrikam.com/dfs.B、Add //File2/templates as a folder target for //fabrikam.com/dfs/templates.C、In the Group Policy preferences of GPO2 and GPO3， add new mapped drives.D、Create a DFS Replication group that contains //File1/templates and //File2/templates.
单选题UNIX系统命令cat file1file2功能是（）。A将文件file2的内容添加到文件file1的末尾B将文件file1的内容添加到文件file2的末尾C连接文件file1和file2D显示文件file1和file2
单选题You are the network administrator for your company. All network servers run Windows Server 2003. The network includes a file server named File1. File1 contains a single disk for system files and two SCSI hard disks that comprise a 72-GB mirrored volume with 65 GB of read-only data. Users connect to this data by using shortcuts on their desktops. File1 is scheduled for replacement. You have a scheduled maintenance window to complete this task. Before the maintenance window, you build a new server. You need to bring the new server online with current data and re-establish redundancy as quickly as possible. You must also ensure that the desktop shortcuts will continue to function. What should you do? （）AName the new server File2. Create a new mirrored volume by using two 72-GB disks. Connect File2 to the network and copy the data from File1. When copying is complete, shut down the old File1.BName the new server File1. Move both disks from the old File1 to the new File1. Scan the disks for changes. Import the disks. Connect the new File1 to the network.CName the new server File1. Break the mirror on the old File1. Move one of the disks from the old File1 to the new File1. Scan the disk for changes. Initialize the disk. Select the spare disk and create the mirror. Connect the new File1 to the network.DName the new server File1. Remove one of the disks in the mirror from the old File1. Move the disk to the new File1. Scan the disk for changes. Import the disk. Shut down the old File1 and connect the new File1 to the network.
判断题命令ls -l file1与ls -l file1的含义的含义一样。A对B错