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Create 160801125 余彬梅 #143

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52 changes: 52 additions & 0 deletions 160801125 余彬梅
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++作业1：
++①touch message.txt
++ mv message.txt workbench
++
++②cp workbench/message.txt ~
++
++③sudo apt install rsync
++ mkdir empty
++ mkdir test
++ mv ~/message.txt test
++ mv ~/workbench/message.txt test
++ rsync --delete-before -d empty/ test/
++ rmdir empty
++ rmdir test
++
++
++
++作业2：
++① mkdir workbench
++
++②touch workbench/readme.txt
++
++③echo -e "1\n2\n3" > workbench/readme.txt
++
++④cat workbench/readme.txt
++
++⑤touch workbench/list.txt
++ ls -al > workbench/list.txt
++
++⑥wc m workbench/list.txt
++
++
++作业3：
++① man ls
++ 根据命令结果可以看到 human-readable output 的标记是 -h
++
++② man man
++
++③在命令行输入cal 按两次TAB键查看相关命令
++ 查看calendar命令使用方法： man calendar
++
++
++
++
++作业4：
++①find . -name "*.png"
++
++②rm -rf .*.png
++
++③假设数据存为txt文件 照片存为png文件 共同存放于test文件夹下
++ mv test/*.txt data
++ mv test/*.png photo