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52 changes: 52 additions & 0 deletions 160801132
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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