嗯，我的系统显示已经安装了readline
rlwrap-0.41]$ sudo yum install readline
Loaded plugins: fastestmirror, presto, security
Loading mirror speeds from cached hostfile
.
.
.
Package readline-6.0-4.el6.x86_64 already installed and latest version
Nothing to do
但是当我运行readline命令时，它不起作用。
-bash: readline: command not found
sudo find /usr/ -iname readline
我的问题是安装http://freecode.com/projects/rlwrap/时出错，配置失败并显示找不到readline库。