单项选择题X 纠错
A../myscript >> /tmp/myoutput
B../myscript 2>&1 /tmp/myoutput
C../myscript > /tmp/myoutput 2>&1
D../myscript > /tmp/myoutput &1>2
你可能喜欢
单项选择题
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.kill 201
B.cancel 201
C.disable pcl
D.rm /var/spool/lpd/STDIN.27648
单项选择题
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
A.dog cat
B.dog fish
C.mouse cat
D.mouse fish
单项选择题
A.chmod +s /tmp
B.chmod 775 /tmp
C.chmod 1777 /tmp
D.chmod 4755 /tmp
单项选择题
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
单项选择题
A.chmod -R 775 /stuff
B.chmod -h 002 /stuff
C.chmod -R 577 /stuff
D.chmod ug+rwx,o+rx /stuff
单项选择题
A.The /tmp/application should be globally writable.
B.The /tmp/application directory should be executable.
C.The /tmp/application directory should be owned by the user.
D.The /tmp/application directory should have the sticky bit set.
单项选择题
A.The $VAR variable was not exported
B.The $VAR should have been set as VAR
C.dog needs double quotes around it when setting $VAR
D.The { } should not be around VAR in the echo command
单项选择题
A.#!/bin/ksh line is missing
B.Variable name VAR is not properly initialized
C.Loop variable is not incremented inside the loop
D.Loop variable is not decremented inside the loop