单项选择题

Given the following scripts， both found in /usr/local/bin， what would the output be when executing /usr/local/bin/script1？（）

A.dog cat
B.dog fish
C.mouse cat
D.mouse fish

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热门试题

单项选择题

Howcanpermissionsbesetupon tmpsothatausercannotdeleteanotheruser’sfiles？（）

A.chmod +s /tmp
B.chmod 775 /tmp
C.chmod 1777 /tmp
D.chmod 4755 /tmp

单项选择题

While installing an application， the administrator is instructed to perform two final tasks prior to starting the application： 1.Set the ownership of a file named ’control_file’ to be owned by the user ’database’ and the group ’appsrvr’. 2.Change the permissions of ’control_file’ to 0766. After these two tasks have been completed， what will the file permissions look like when ’ls -l control_file’ is executed？（）

A.-rwxrw-rw- 1 database appsrvr 4913 Mar 17 08：24 control_file
B.-rw-r--r-- 1 appsrvr database 4913 Mar 17 08：24 control_file
C.-rw-r--r-- 1 database appsrvr 4913 Mar 17 08：24 control_file
D.-rwxrw-rw- 1 appsrvr database 4913 Mar 17 08：24 control_file