本文主要讲述Linux命令行下怎么修改已经保存的客户端密码：
第一步，删除 subvision文件：
rm -rf ~/.subvision
第二步：执行任意需要访问服务器的svn命令，会提示是否永久保存密码，此时请输入新的用户名和密码：
MacBook-Pro-2:~ baidu$ svn info https://svn.baidu.com/app/search/**/trunk/****
Error validating server certificate for ‘https://svn.baidu.com:443‘:
- The certificate is not issued by a trusted authority. Use the
fingerprint to validate the certificate manually!
Certificate information:
- Hostname: svn.baidu.com
- Valid: from Tue, 16 Mar 2010 10:45:03 GMT until Fri, 13 Mar 2020 10:45:03 GMT
- Issuer: baidu, baidu, BEIJING, BEIJING, CN
- Fingerprint: ad:77:84:4d:5d:fb:7a:c8:f7:2e:fb:48:20:86:3a:0e:73:43:e7:62
(R)eject, accept (t)emporarily or accept (p)ermanently?
选择p
键入新的用户名和密码，就可以了。
原文：http://www.cnblogs.com/sonofelice/p/5174727.html