我的系统显示readline已安装

rlwrap-0.41]$ sudo yum install readline
Loaded plugins: fastestmirror, presto, security
Loading mirror speeds from cached hostfile
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Package readline-6.0-4.el6.x86_64 already installed and latest version
Nothing to do

但当我运行readline命令时，它不起作用

-bash: readline: command not found

我想命令二进制可能不在路径上，所以尝试搜索它，但没有运气。！！

sudo find /usr/ -iname readline

基本上，我正在尝试安装http://freecode.com/projects/rlwrap/，但配置失败，称未找到readline库。