如何查看通过系统命令查看ORA错误信息?

比如直接查看ORA-01031错误

gaosheng-> oerr ora 01031
01031, 00000, "insufficient privileges"
// *Cause: An attempt was made to change the current username or password
//         without the appropriate privilege. This error also occurs if
//         attempting to install a database without the necessary operating
//         system privileges.
//         When Trusted Oracle is configure in DBMS MAC, this error may occur
//         if the user was granted the necessary privilege at a higher label
//         than the current login.
// *Action: Ask the database administrator to perform the operation or grant
//          the required privileges.
//          For Trusted Oracle users getting this error although granted the
//          the appropriate privilege at a higher label, ask the database
//          administrator to regrant the privilege at the appropriate label.
gaosheng-> 

如何查看通过系统命令查看ORA错误信息?