git clone /xxxxx时出现Permission denied (publickey),是ssh key过期的问题,需要对ssh key进行更新
ssh-keygen
所有设置都选择默认,对ssh-key进行更新,ssh key公钥将被默认存储在~/.ssh/id_rsa.pub (~/.ssh/id_rsa存储的是私钥)
gedit ~/.ssh/id_rsa.pub
查看公钥,并将所有内容复制
打开github,右上角打开settings,找到ssh key并将所有内容粘贴即可解决问题