该语句[-f/home]&&echo"yes"||echo"no",执行的结果正确的是()
A. 0
B. yes
C. 1
D. no
grep-nE'111A|111B'zhengze.txt下列选项中符合上述语句查找的内容是()
A. 10:Shoobiedo111Alanglang
B. Shoobiedo111Blanglang
C. 10:ShoobiedoBlanglang
D. Shoobiedo111Alanglang
[root@localhost1125]#aa=123[root@localhost1125]#bb=456[root@localhost1125]#dd='$aa'"$bb"789请你选出echo$dd的值()
A. 123456789E8
B. $aa456789
C. 123$bb789
D. $aa$bb789
下列为文件file创建软链接的命令是()
A. lnfile
B. lsfile
C. ll-nfile
D. ln-sfile