单项选择题X 纠错
A.refresh -s inetd
B.refresh -s tcpip
C.refresh -g /etc/rc.tcpip
D.refresh -g /etc/inetd.conf
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单项选择题
A.crontab -l
B.cron -l root
C.lscron -l root
D.cat /var/cron/crontabs/root
单项选择题
A.0 5 * * 6 /usr/local/bin/myscript
B.0 5 6 * * /usr/local/bin/myscript
C.6 * * 5 0 /usr/local/bin/myscript
D.5 0 Sat * * /usr/local/bin/myscript
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
单项选择题
A../myscript >> /tmp/myoutput
B../myscript 2>&1 /tmp/myoutput
C../myscript > /tmp/myoutput 2>&1
D../myscript > /tmp/myoutput &1>2
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