1、登陆mos站点下载最新版本的 OPatch补丁，这里以p6880880_102000_Linux-x86-64.zip补丁为例。
https://updates.oracle.com/download/6880880.html
2、上传补丁至服务器，并移动补丁至数据库软件安装目录。
#mv p6880880_102000_Linux-x86-64.zip $ORACLE_HOME
3、切换用户至oracle用户，进入$ORACLE_HOME安装补丁。
[oracle@server ~]$ cd /home/oracle/orahome/
[oracle@server orahome]$ mv OPatch OPatch.old
[oracle@server orahome]$ unzip p6880880_102000_Linux-x86-64.zip
Archive: p6880880_102000_Linux-x86-64.zip
creating: OPatch/
creating: OPatch/ocm/
extracting: OPatch/ocm/ocm.zip
creating: OPatch/ocm/lib/
inflating: OPatch/ocm/lib/osdt_jce.jar
inflating: OPatch/ocm/lib/osdt_core3.jar
inflating: OPatch/ocm/lib/emocmclnt-14.jar
inflating: OPatch/ocm/lib/emocmutl.jar
creating: OPatch/ocm/bin/
inflating: OPatch/ocm/bin/emocmrsp
inflating: OPatch/ocm/ocm_platforms.txt
creating: OPatch/crs/
creating: OPatch/crs/log/
inflating: OPatch/crs/patch212.pl
inflating: OPatch/crs/crsdelete.pm
inflating: OPatch/crs/crspatch.pm
inflating: OPatch/crs/s_crsconfig_defs
inflating: OPatch/crs/crsconfig_lib.pm
inflating: OPatch/crs/oracss.pm
inflating: OPatch/crs/auto_patch.pl
inflating: OPatch/crs/s_crsconfig_lib.pm
inflating: OPatch/opatch
creating: OPatch/opatchprereqs/
creating: OPatch/opatchprereqs/opatch/
inflating: OPatch/opatchprereqs/opatch/runtime_prereq.xml
inflating: OPatch/opatchprereqs/opatch/opatch_prereq.xml
inflating: OPatch/opatchprereqs/opatch/rulemap.xml
inflating: OPatch/opatchprereqs/prerequisite.properties
creating: OPatch/opatchprereqs/oui/
inflating: OPatch/opatchprereqs/oui/knowledgesrc.xml
inflating: OPatch/opatch.ini
inflating: OPatch/emdpatch.pl
inflating: OPatch/opatch.pl
creating: OPatch/jlib/
inflating: OPatch/jlib/opatchprereq.jar
inflating: OPatch/jlib/opatchactions.jar
inflating: OPatch/jlib/opatchutil.jar
inflating: OPatch/jlib/opatchfmw.jar
inflating: OPatch/jlib/opatchext.jar
inflating: OPatch/jlib/opatch.jar
inflating: OPatch/opatch.bat
creating: OPatch/docs/
inflating: OPatch/docs/Prereq_Users_Guide.txt
inflating: OPatch/docs/FAQ
inflating: OPatch/docs/Users_Guide.txt
inflating: OPatch/README.txt
[oracle@server orahome]$ cd OPatch
[oracle@server OPatch]$ ./opatch version
Invoking OPatch 10.2.0.5.1
OPatch Version: 10.2.0.5.1
OPatch succeeded.
[oracle@server OPatch]$
4、可以使用绝对路径来启动 OPatch：
[oracle@server OPatch]$ $ORACLE_HOME/OPatch/opatch version
Invoking OPatch 10.2.0.5.1
OPatch Version: 10.2.0.5.1
OPatch succeeded.
[oracle@server OPatch]$
或者可以把 OPatch 所在的目录加到 PATH 这个环境变量中,之后就可以在任何目录运行 OPatch 命令(opatch <args>)而不需要指定绝对路径
For Korn / Bourne shell:
$ export PATH=$PATH:$ORACLE_HOME/OPatch
