中间件-apache卸载步骤
1、背景现实情况往往是你想删除或卸载已安装好的软件。但你可能只知道这个软件安装好后的文件名是什么，此时可以先用which或其find找到你想删除的文件
2、查找已经安装的httpd文件
# which httpd ---查删除的文件
/usr/sbin/httpd
# rpm -q -f /usr/sbin/httpd --根据文件查出所对应的rpm包名
httpd-2.2.3-31.el5.centos
# rpm -e httpd-2.2.3-31.el5.centos --执行删除
error: Failed dependencies: --会报错，这说明会有依赖关系存在
httpd-mmn = 20051115 is needed by (installed) php-5.1.6-23.2.el5_3.i386
httpd-mmn = 20051115 is needed by (installed) mod_python-3.2.8-3.1.i386
httpd-mmn = 20051115 is needed by (installed) mod_ssl-2.2.3-31.el5.centos.i386
httpd-mmn = 20051115 is needed by (installed) mod_perl-2.0.4-6.el5.i386
webserver is needed by (installed) webalizer-2.01_10-30.1.i386
httpd is needed by (installed) piranha-0.8.4-13.el5.i386
httpd >= 2.0.40 is needed by (installed) mod_python-3.2.8-3.1.i386
httpd = 0:2.2.3-31.el5.centos is needed by (installed) mod_ssl-2.2.3-31.el5.centos.i386
httpd = 2.2.3-31.el5.centos is needed by (installed) httpd-manual-2.2.3-31.el5.centos.i386
httpd >= 2.2.0 is needed by (installed) gnome-user-share-0.10-6.el5.i386
httpd is needed by (installed) system-config-httpd-1.3.3.3-1.el5.noarch
# rpm -e --allmatches httpd-2.2.3-31.el5.centos
error: Failed dependencies:
httpd-mmn = 20051115 is needed by (installed) php-5.1.6-23.2.el5_3.i386
httpd-mmn = 20051115 is needed by (installed) mod_python-3.2.8-3.1.i386
httpd-mmn = 20051115 is needed by (installed) mod_ssl-2.2.3-31.el5.centos.i386
httpd-mmn = 20051115 is needed by (installed) mod_perl-2.0.4-6.el5.i386
webserver is needed by (installed) webalizer-2.01_10-30.1.i386
httpd is needed by (installed) piranha-0.8.4-13.el5.i386
httpd >= 2.0.40 is needed by (installed) mod_python-3.2.8-3.1.i386
httpd = 0:2.2.3-31.el5.centos is needed by (installed) mod_ssl-2.2.3-31.el5.centos.i386
httpd = 2.2.3-31.el5.centos is needed by (installed) httpd-manual-2.2.3-31.el5.centos.i386
httpd >= 2.2.0 is needed by (installed) gnome-user-share-0.10-6.el5.i386
httpd is needed by (installed) system-config-httpd-1.3.3.3-1.el5.noarch
-----加上删除一些选项,--allmatches是把与这个rpm包所有相匹配的rpm包全部删除掉;--nodeps是在删除时不进行依赖性的读取
# rpm -e --allmatches --nodeps httpd-2.2.3-31.el5.centos
# which httpd ---再次查询，已经安装的rpm包已经没有了
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