执行ssh-add时出现Could not open a connection to your authentication agent
若执行ssh-add /path/to/xxx.pem是出现这个错误:Could not open a connection to your authentication agent，则先执行如下命令即可：
ssh-agent bash
标签：Could,authentication,agent,connection,open,your From： https://www.cnblogs.com/zouhong/p/16785974.html