什么是Patch?

简单的说，补丁就是一些替换现存的文件和目录的文件目录集合。补丁纠正应用程序的错误或增加功能。

Patch编号

每个补丁都有编号。例如补丁号为101945，版本是34的话，这个补丁的目录名就是101945-34.

patchadd命令用于安装补丁:

# cd /tmp

# ls

105160-01 ps_data sdt_fl8zKOI_

# patchadd 105160-01

Checking installed packages and patches...

Verifying sufficient filesystem capacity (dry run method)

Installing patch packages...

Patch number 105160-01 has been successfully installed.

See /var/sadm/patch/105160-01/log for details

Patch packages installed:

SUNWdtbas

patchrm用于删除补丁

# patchrm 105633-06

Checking installed packages and patches...

Patch 105633-06 has been backed out.

#

下面的命令用于检查系统的补丁情况

# patchadd -p

Patch: 105160-05 Obsoletes: Requires: Incompatibles:Packages: SUNWdtbas

# showrev -p

Patch: 105160-05 Obsoletes: Requires:Incompatibles: Packages: SUNWdtbas