21篇测试必备的Linux常用命令,每天敲一篇,每次敲三遍,每月一循环,全都可记住!!
https://www.cnblogs.com/poloyy/category/1672457.html
cp test.txt /usr/local
cp -r yyTest/ /usr/local
cp -f test.txt /usr/local
cp -i test.txt /usr/local
cp -p test.txt /usr/local