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多项选择题
A、echo The current working path is $PWD.
B、echo "The current working path is $PWD." Echo hello
C、echo 'The current working path is $PWD.' Echo hello
D、echo "The current working path is `pwd`."
E、echo The current working path is $PWD. Echo hello
单项选择题
A、date>>/tmp/date
B、date>/tmp/date
C、date 2>/tmp/date
D、date &>/tmp/date
单项选择题
A、mkdir /tmp/file
B、make /tmp/file
C、touch /tmp/file
D、mv /tmp/file
单项选择题
A、mv /tmp/test/oldfile newfile
B、mv /tmp/test/oldfile /tmp/test/newfile
C、mv oldfile /tmp/test/
D、mv oldfile newfile
单项选择题
A、ls -i /tmp
B、ls -l /tmp
C、ls -r /tmp
D、ls -d /tmp