hyy_blog

1.mysql安装 https://www.jianshu.com/p/276d59cbc529 问题1.Starting MySQL...[ERROR] The server quit without updating PID file (/usr/local/mysql/data/mysqld.pid). 解决： 1.可能是/usr/local/MySQL/data/mysqld.pid文件没有写的权限 解决方法 ： 给予权限，执行 “chown -R mysql:mysql /usr/l.

1.grep 偏向过滤 参考： https://blog.youkuaiyun.com/Aaroun/article/details/78216837?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522159288023819725247625927%2522%252C%2522scm%2522%253A%252220140713.130102334..%2522%257D&request_id=1592880238197252476259..

linux命令大全 转载了博客：https://www.cnblogs.com/yjd_hycf_space/p/7730690.html 后续在加以补充