常见问题

sudo chmod +x *****.bin                                            赋权

sudo ./                                                                                          执行

cat /proc/version　　　　　　　　　　　　　　　　查看系统版本

source /etc/profile                                                                    立即执行环境变量

chmod  777 -R bin/                                                            当前文件夹付最高权限

firewall-cmd --query-port=6379/tcp                                    查看想开的端口是否已开

firewall-cmd --add-port=123/tcp --permanent                 添加指定需要开放的端口

firewall-cmd --reload                                                               重载入添加的端口

useradd oracle                                                                                    创建用户oracle

ps -ef|grep ***                                                                          查询进程中含有***的

挂载新磁盘

fdisk -l                                                                                 查看磁盘

mkfs.ext4  /dev/sdb1                                                            格式化磁盘

mount /dev/sdb1 /main/                                               挂载磁盘

tomcat日志查（切换到logs目录下）

tail -f catalina.out                                                                     查看tomcat

ALTER PROFILE DEFAULT LIMIT PASSWORD_LIFE_TIME UNLIMITED;　　　　　　将oracle密码修改为不限时间