windows下dos常用命令和linux下常用命令，给力的狠

wget -b -i url.txt            ------------------下载url.txt里面所有链接，每个链接一行

yum install -y vixie-cron     -----------安装才能使用 这个添加任务   crontab -e

cat *.txt > all.txt    ----------合并文件

00 00 * * * /bin/bash /root/cut_nginx_logs.sh   每天0点整开始切割脚本

i  ESC :wq 回车----------编辑文件

mysqld --install MySQL --defaults-file="C:\Windows\my.ini"        ----------------加入服务

----------------------------导出
select a,b,c,d FROM tbname  where id=50 into outfile "a.txt"
FIELDS
TERMINATED BY '@'
OPTIONALLY
ENCLOSED BY '"'
LINES
TERMINATED BY '\n'

----------------------------插入

load data local infile "c:/a.txt" into table tbname
FIELDS
TERMINATED BY '@'
OPTIONALLY
ENCLOSED BY '"'
LINES
TERMINATED BY '\n'
(a,b,c,d);

压缩myisam表，能达到40-70%的压缩率
myisampack  *.MYI
用myisamchk重新生成索引
myisamchk -rq *.MYI
刷新表
mysqladmin flush-tables