單項(xiàng)選擇題
A、echo The current working path is $PWD. B、echo 'The current working path is $PWD.' C、echo "The current working path is $PWD." D、echo "The current working path is `pwd`."
A、alias copy="cp" B、alias copy='cp' C、alias copy=`cp` D、alias copy=cp
多項(xiàng)選擇題
A、> B、>> C、2> D、&> E、<
A、date>/tmp/date B、date>>/tmp/date C、date2>>/tmp/date D、date&>/tmp/date
A、more B、cat C、less D、head E、tail
A、head -8 /etc/passwd | tail -4 B、tail -8 /etc/passwd | head -4 C、more -8 /etc/passwd | less -4 D、less -8 /etc/passwd | more -4
A、mkdir /tmp/file B、touch /tmp/file C、mv /tmp/file D、rm /tmp/file
A、vi B、mv C、touch D、mkdir E、cp
A、–R B、–f C、–I D、–s
A、cp -R /tmp/test /tmp/test1 B、cp -r /tmp/test /tmp/test1 C、cp -R /tmp/test/. /tmp/test1 D、cp /tmp/test /tmp/test1
A、cp -l /tmp/test/file /tmp B、cp -s /tmp/test/file /tmp C、cp -r /tmp/test/file /tmp D、cp /tmp/test/file /tmp E、cp /tmp/test/file /tmp/file
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