1.完成将server和client端的mysql配置默认字符集为utf8mb4设置服务器默认的字符集vim/etc/my.cnf[mysqld]character-set-server=utf8mb4设置MySQL客户端默认的字符集vim/etc/my.cnf#针对MySQL客户端[mysql]default-character-set=utf8mb4#针对所有MySQL客户端[client]

1.完成将server和client端的mysql配置默认字符集为utf8mb4设置服务器默认的字符集vim/etc/my.cnf[mysqld]character-set-server=utf8mb4设置MySQL客户端默认的字符集vim/etc/my.cnf#针对MySQL客户端[mysql]default-character-set=utf8mb4#针对所有MySQL客户端[client]

1.总结脚本高级命令trap,install,mktemp,expect,进程优先级命令：nice,renice,进程管理工具:ps,pstree,pidstat,pgrep,pidof,uptime,mpstat,top,htop,free,pmap,vmstat,iostat,iotop,iftop,nload,nethogs,iptraf-ng,dstat,glances,cockpit,kill,jobs,任