错误信息：
ftp: error while loading shared libraries: libreadline.so.5: cannot open shared object file: No such file or directory
解决办法：
yum install -y readline-devel readline
[root@zdx118106 ~]# cd /usr/lib64/
[root@zdx118106 lib64]# ll *libreadline*
lrwxrwxrwx. 1 root root 28 Jul 18 10:13 libreadline.so -> ../../lib64/libreadline.so.6
[root@zdx118106 lib64]# ln -s ../../lib64/libre
libreadline.so.6 libreadline.so.6.0 libresolv-2.12.so libresolv.so.2
[root@zdx118106 lib64]# ln -s ../../lib64/libreadline.so.6 libreadline.so.5
[root@zdx118106 lib64]# ll *libreadline*
lrwxrwxrwx. 1 root root 28 Jul 18 10:13 libreadline.so -> ../../lib64/libreadline.so.6
lrwxrwxrwx. 1 root root 28 Jul 18 10:15 libreadline.so.5 -> ../../lib64/libreadline.so.6
- shared libreadline libraries loading cannotshared libreadline libraries loading shared file libraries loading shared libraries loading libxml2 shared permission libraries loading libjemalloc libraries loading cannot shared libraries loading libpcre libraries loading方法cannot shared file directory libraries glibcxx library unable shared jenkins library share