Linux系统上查找已安装软件的路径

在Linux系统上查找已安装软件路径的命令，以查找pcre的安装路径为例:

[root@localhost doc]# rpm -ql pcre
/lib64/libpcre.so.0
/lib64/libpcre.so.0.0.1
/usr/bin/pcregrep
/usr/bin/pcretest
/usr/lib64/libpcrecpp.so.0
/usr/lib64/libpcrecpp.so.0.0.0
/usr/lib64/libpcreposix.so.0
/usr/lib64/libpcreposix.so.0.0.0
/usr/share/doc/pcre-7.8
/usr/share/doc/pcre-7.8/AUTHORS
/usr/share/doc/pcre-7.8/COPYING
/usr/share/doc/pcre-7.8/ChangeLog
/usr/share/doc/pcre-7.8/LICENCE
/usr/share/doc/pcre-7.8/NEWS
/usr/share/doc/pcre-7.8/README
/usr/share/man/man1/pcre-config.1.gz
/usr/share/man/man1/pcregrep.1.gz
/usr/share/man/man1/pcretest.1.gz
[root@localhost doc]#

则pcre的安装路径为：

/usr/share/doc/pcre-7.8