单项选择题
A./usr/local/bin/myscript > /dev/null B./usr/local/bin/myscript < /dev/null C./usr/local/bin/myscript 2> /dev/null D./usr/local/bin/myscript 1> /dev/null
Whichcommandwillrunmyscriptandredirectstdoutandsterrto/...
单项选择题Which command will run myscript and redirect stdout and sterr to /tmp/myoutput？（）
A../myscript >> /tmp/myoutput B../myscript 2>&1 /tmp/myoutput C../myscript > /tmp/myoutput 2>&1 D../myscript > /tmp/myoutput &1>2
Auser’sprintjobsdefaulttoPRINTER_A.Theuserwantstochange...
单项选择题A user’s print jobs default to PRINTER_A.The user wants to change their default printer to PRINTER_B.How can the system administrator change the user’s default printer to PRINTER_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
A 1500 page print job was sent to the "pcl" queue. The ...
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
