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  1.在/tmp/目录下创建test.txt文件，内容为:Hello，World!,用一个命令写出来。    答：    echo "Hello,World!" > /tmp/test.txt    2.给test.txt...

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1 pwd：显示当前工作目录 [root@minion ~]# pwd /root 2 cd：切换当前工作目录 [root@minion /]# cd &nb...

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