命令time ls报告题time和ls两个命令在系统内执行占用的时间。
第1题:
35 The range of time allowed for an activity to be completed in is the _____.
A. Planned time (Duration).
B. Float time (LS - ES, or LF - EF).
C. Critical time (when ES = LS, or EF = LF).
D. Scheduled time (LF - ES).
E. Event.
第2题:
A.ls
B.ls-f
C.more
D.ls-l
第3题:
The range of time allowed for an activity to be completed in is the _____.
A.Planned time (Duration).
B.Float time (LS - ES, or LF - EF).
C.Critical time (when ES = LS, or EF = LF).
D.Scheduled time (LF - ES).
E.Event.
第4题:
在命令行中输入()是执行【列表】命令。
A.Li
B.Lis
C.List
D.Ls
第5题:
下图是在Linux系统中用ls命令查看文件信息的输出结果,可以判断命令行输入的完整命令是(42),当前目录的下级目录是(43),当前目录中的可执行文件是(44),当前用户是(45)。
A.ls
B.ls-a
C.ls-l
D.ls-la
第6题:
● The range of time allowed for an activity to be completed in is the _____.
A Planned time (Duration).
B Float time (LS - ES, or LF - EF).
C Critical time (when ES = LS, or EF = LF).
D Scheduled time (LF - ES).
E Event.
第7题:
可显示隐藏文件的ls命令形式选项是()
A.ls-a
B.ls-d
C.ls-h
D.ls-l
第8题:
153 The range of time allowed for an activity to be completed in is the _____.
A. Planned time (Duration).
B. Float time (LS - ES, or LF - EF).
C. Critical time (when ES = LS, or EF = LF).
D. Scheduled time (LF - ES).
E. Event
第9题:
Linux系统中,一般把命令ls定义为ls--color的别名,以便以不同颜色来标识不同类型的文件。但是,如何能够使用原先的ls命令()。
A.\ls
B.;ls
C.ls$$
D.ls--noalias
第10题:
如果要将“ls–l”命令重定向输出到file文件的末尾,正确的命令是()。
A.ls–l>file
B.ls–l>>file
C.ls–l2>file
D.ls–l2>>file