ls
cd
reboot
mkdir
rmdir
rm -fr
cp
cat
mv
yum -y install httpd php mysql mysql-server php-mysql
ln -s /var/lib/mysql/mysqld.sock /tmp/mysqld.sock
ps aux|grep mysql
rpm -ql httpd --------------->查询所有安装httpd的目录和文件,列出很多文件目录,把所有目录分开进行讲解
find / -name mysql
rpm -qa|grep -i httpd
rpm -e httpd-devel-2.2.15-47.el6.centos.x86_64 卸载