另外系统层面的乱码，网上查看了一下，有些人建议修改/etc/sysconfig/i18n的设置。
[ora11g@rac1 ~]$ cat /etc/sysconfig/i18*
LANG="en_US.UTF-8"
SYSFONT="latarcyrheb-sun16"
如果修改为中文的，一定要注意设置的值，在我本地做测试，是不需要修改的，本身就支持，我修改的时候，竟然改错了，结果重新登录及报了一大堆的错误，如下：
[ora11g@rac1 caipiao]$ su - ora11g
Password:
-bash: warning: setlocale: LC_CTYPE: cannot change locale (zn_CN.UTF-8): No such file or directory
-bash: warning: setlocale: LC_COLLATE: cannot change locale (zn_CN.UTF-8): No such file or directory
-bash: warning: setlocale: LC_MESSAGES: cannot change locale (zn_CN.UTF-8): No such file or directory
-bash: warning: setlocale: LC_NUMERIC: cannot change locale (zn_CN.UTF-8): No such file or directory
-bash: warning: setlocale: LC_TIME: cannot change locale (zn_CN.UTF-8): No such file or directory
如果修改，应该改为zh_CN,算是一个低级错误。
