You may need to set ORACLE_HOME to your Oracle software directory

Linux下安装好Oracle 10g后运行sqlplus出现故障如下:

[oracle@localhost oracle]$ ./sqlplusError 6 initializing SQL*PlusMessage file sp1<lang>.msb not foundSP2-0750: You may need to set ORACLE_HOME to your Oracle software directory解决方法：第一，用oracle用户名登录linux系统。而不是root登录后su oracle。第二，用oracle用户名登录linux系统后，vi .bash_profile,其中，文件.bash_profile在／home／oracle目录下，它是隐藏文件，可以ls -a 显示所有文件（包含隐藏文件）。第三，编辑.bash_profile文件，内容如下：——————————————————————————————————————————————————————————————————# .bash_profile# Get the aliases and functionsif [ -f ~/.bashrc ]; then        . ~/.bashrcfi# User specific environment and startup programsPATH=$PATH:$ORACLE_HOME/binunset USERNAMEexport ORACLE_SID=orclexport ORACLE_BASE=/home/oracle/oracleexport ORACLE_HOME=/home/oracle/oracle/product/10.2.0/db_1export PATH~——————————————————————————————————————————————————————————————————————————
重新启动系统，用oracle用户名登录。
[oracle@localhost ~]$ cd $ORACLE_HOME
[oracle@localhost db_1]$ pwd
/home/oracle/oracle/product/10.2.0/db_1
[oracle@localhost db_1]$ cd bin
[oracle@localhost bin]$ pwd
/home/oracle/oracle/product/10.2.0/db_1/bin
[oracle@localhost bin]$

然后
[oracle@localhost bin]$ ./sqlplus "/ as sysdba"

SQL*Plus: Release 10.2.0.1.0 - Production on Mon Aug 17 10:43:41 2009

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Connected to an idle instance.

SQL>
——————————————————————————————————————————
问题解决！！
我们发现Connected to an idle instance.
只要
SQL>startup
就ok！