當執行 ssh-add 時
ssh-add ~/.ssh/<private_key_file>
如果出現錯誤訊息: Could not open a connection to your authentication agent.
執行進入 ssh bash ,就能正執行 ssh-add
ssh-agent bash
ssh-add ~/.ssh/<private_key_file>
refs: 解決,ssh add 出現 Could Not Open A Connection To Your Authentication Agent.