单项选择题
How would a system administrator review root’s current cron jobs of the following？（）
A.crontab -l
B.cron -l root
C.lscron -l root
D.cat /var/cron/crontabs/root
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相关考题
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单项选择题
Whichcronentrywillrun/usr/local/bin/myscriptat0500everySaturdayofthefollowing？（）
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
Asystemadministratorwantstorunascriptcalledmyscript，butdoesnotwanttoseetheerrorsthatmightbegeneratedbythescript.Howwouldthisbeaccomplished？（）
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
Whichcommandwillrunmyscriptandredirectstdoutandsterrto/tmp/myoutput？（）
A../myscript >> /tmp/myoutput
B../myscript 2>&1 /tmp/myoutput
C../myscript > /tmp/myoutput 2>&1
D../myscript > /tmp/myoutput &1>2
