Linux老是提示compat-libstdc++ is not installed的原因

在一Linux服务器上检查是否安装了一些包时，遇到老是提示"package compat-libstdc++ is not installed"

[root@DB-Server ~]# rpm -q --qf '%{NAME}-%{VERSION}-%{RELEASE} (%{ARCH})\n' binutils \

> compat-libstdc++ \

> elfutils-libelf \

> elfutils-libelf-devel \

> gcc \

> gcc-c++ \

> glibc \

> glibc-common \

> glibc-devel \

> glibc-headers \

> ksh  \

> libaio \

> libaio \

> libaio-devel \

> libgcc \

> libstdc++ \

> libstdc++-devel \

> make \

> sysstat

binutils-2.17.50.0.6-14.el5 (x86_64)

package compat-libstdc++ is not installed

elfutils-libelf-0.137-3.el5 (x86_64)

elfutils-libelf-0.137-3.el5 (i386)

elfutils-libelf-devel-0.137-3.el5 (x86_64)

gcc-4.1.2-51.el5 (x86_64)

gcc-c++-4.1.2-51.el5 (x86_64)

glibc-2.5-65 (x86_64)

glibc-2.5-65 (i686)

glibc-common-2.5-65 (x86_64)

glibc-devel-2.5-65 (x86_64)

glibc-devel-2.5-65 (i386)

glibc-headers-2.5-65 (x86_64)

ksh-20100202-1.el5_6.6 (x86_64)

libaio-0.3.106-5 (x86_64)

libaio-0.3.106-5 (i386)

libaio-0.3.106-5 (x86_64)

libaio-0.3.106-5 (i386)

libaio-devel-0.3.106-5 (x86_64)

libaio-devel-0.3.106-5 (i386)

libgcc-4.1.2-51.el5 (x86_64)

libgcc-4.1.2-51.el5 (i386)

libstdc++-4.1.2-51.el5 (x86_64)

libstdc++-4.1.2-51.el5 (i386)

libstdc++-devel-4.1.2-51.el5 (x86_64)

make-3.81-3.el5 (x86_64)

sysstat-7.0.2-11.el5 (x86_64)

[root@DB-Server ~]# 

[root@DB-Server ~]# rpm -qa | grep "compat-libstdc"

compat-libstdc++-33-3.2.3-61

compat-libstdc++-33-3.2.3-61

compat-libstdc++-296-2.96-138

[root@DB-Server ~]# 

但是使用上面命令发现这个这些包其实是已经安装了的，那么为什么老是提示compat-libstdc++没有安装呢？这个是因为使用rpm查询时，包名不正确所致。它真正的报名为 compat-libstdc++-33 而不是compat-libstdc++ 。如果包名正确，那么查询结果就会不一样，如下所示：

[root@DB-Server ~]# rpm -q --qf '%{NAME}-%{VERSION}-%{RELEASE} (%{ARCH})\n' compat-libstdc++-33

compat-libstdc++-33-3.2.3-61 (x86_64)

compat-libstdc++-33-3.2.3-61 (i386)