An operator needs to create /dir1/dir2/dir3. The /dir1 does not exist. What command can be used to create dir2 and dir3?() A. mkdir /dir1/dir2/dir3B. mkdir -R dir1/dir2/dir3C. mkdir -p /dir1/dir2/dir3D. mkdir -r /dir1/dir2/dir3
An operator needs to create /dir1/dir2/dir3. The /dir1 does not exist. What command can be used to create dir2 and dir3?()
A. mkdir /dir1/dir2/dir3
B. mkdir -R dir1/dir2/dir3
C. mkdir -p /dir1/dir2/dir3
D. mkdir -r /dir1/dir2/dir3
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以下创建RandomAccessFile类实例对象的代码,哪些是正确的( )。 A、RandomAccessFile(newFile("D:\\itcast\\dir1\\test.java"),"rw")B、RandomAccessFile("D:\\itcast\\dir1\\test.java","r")C、RandomAccessFile("D:\\itcast\\dir1\\test.java")D、RandomAccessFile("D:\\itcast\\dir1\\test.java","wr")
tonywouldliketomakeiteasierforusersofthevideoapplicationtoenternewdocusingthe“videoform”,he’dlikeuserstobeabletocreatenew“video”docformwithintheview.Whichoneofthefollowingshouldtonysotobuildthisinterface?()A.createaviewactionthathasthefollowingformula:@command([create];”video”)B.createaformactionthathasthefollowingformula:@command([compose];”video”)C.createaviewactionthathasthefollowingformula:@command([compose];”video”)D.createadatabaseactionthathasthefollowingformula:@command([compose];”video”)
下面哪条命令可把./dir1目录(包括它的所有子目录)内容复制到./dir2中?() A. cp -i ./dir1/* ./dir2B. cp -P ./dir1/* ./dir2C. cp -d ./dir1/* ./dir2D. cp -r ./dir1/* ./dir2
将目录dir2复制成dir1