Whichcommandwillrunmyscriptandredirectstdoutandsterrto ……

单项选择题Auser’sprintjobsdefaulttoPRINTER_A.TheuserwantstochangetheirdefaultprintertoPRINTER_B.Howcanthesystemadministratorchangetheuser’sdefaultprintertoPRINTER_B？（）

A.Execute the command ’piobe -q PRINTER_B’
B.Edit the user’s stanza in the /etc/qconfig file
C.Execute the command ’chuser -a QUEUE=PRINTER_B user’
D.Add the line ’export PRINTER=PRINTER_B’ to the user’s .profile

单项选择题A 1500 page print job was sent to the  pcl  queue. The job was running for several minutes before it was determined that the job was not needed. What can be done to delete the job？（）

A.kill 201
B.cancel 201
C.disable pcl
D.rm /var/spool/lpd/STDIN.27648

单项选择题Given the following scripts， what output would be generated？（）

A.The sky is red.
B.The sky is blue.
C.The sky is green.
D.The sky is yellow.

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

单项选择题Howcanpermissionsbesetupon tmpsothatausercannotdeleteanotheruser’sfiles？（）

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