《aix系统应用基础》练习题4-权限

1、答案：答案：C Which command should be used to permit ONLY the owner to use the script file named savemachine as an executable script?A. chmod 777 savemachineB. chmod -x ./savemachineC. chmod u=rwx, go= savemachineD. chmod go-w+x savemachine编辑ppt答案：答案：D If the current directory was /home/guest, which comma

2、nd would the user execute to list all permissions of all files in all subdirectories of /home/guest?A. ls -lB. ls -RC. ls -alD. ls -alR编辑ppt答案：答案：B How can permissions for the chmod command be written?A. as a hex numberB. in either octal or symbolic notationC. as string of “rwx” to picture the layou

3、t of the permissionsD. in the first line of a file when it is created, and then interpreted by the shell编辑ppt答案：答案：B Which of the following commands should be used to restrict read permissions to ONLY the owner for all files contained in the directory?A. chmod 777 /home/me/mydirB. chmod go-r /home/m

4、e/mydir/*C. chmod u+r /home/me/mydir*.*D. chmod 700 /home/me/mydir编辑ppt答案：答案：D After executing the following:chmod 777 dog Which command would verity the results?A. ls -dB. ls -a /C. ls -a dogD. ls -al dog编辑ppt答案：答案：B The mydata file currently has permission bits set at 755. Which of the following commands will take away the execute permission from the group and others?A. chmod 655 myd