http://www.cnblogs.com/joeblackzqq/archive/2011/03/19/1989137.html
有時我們需要RPM包中的某個文件，如何解壓RPM包呢？
RPM包括是使用cpio格式打包的，因此可以先轉成cpio然後解壓，如下所示：
rpm2cpio xxx.rpm | cpio -div
例如：
[root@localhost oracle]# rpm2cpio oracle-instantclient11.2-basic-11.2.0.2.0.i386.rpm | cpio -div
./usr/lib/oracle/11.2/client/bin/adrci
./usr/lib/oracle/11.2/client/bin/genezi
./usr/lib/oracle/11.2/client/lib/libclntsh.so.11.1
./usr/lib/oracle/11.2/client/lib/libnnz11.so
./usr/lib/oracle/11.2/client/lib/libocci.so.11.1
./usr/lib/oracle/11.2/client/lib/libociei.so
./usr/lib/oracle/11.2/client/lib/libocijdbc11.so
./usr/lib/oracle/11.2/client/lib/ojdbc5.jar
./usr/lib/oracle/11.2/client/lib/ojdbc6.jar
./usr/lib/oracle/11.2/client/lib/xstreams.jar
336597 塊
[root@localhost oracle]# ls