根据blog.csdn.net/u011254082/article/details/52725512的说法，是缺少Powerline字体，
执行以下命令来安装缺失的字体：
wget https://raw.githubusercontent.com/powerline/powerline/develop/font/10-powerline-symbols.conf
wget https://raw.githubusercontent.com/powerline/powerline/develop/font/PowerlineSymbols.otf
sudo mkdir /usr/share/fonts/OTF
sudo cp 10-powerline-symbols.conf /usr/share/fonts/OTF/
sudo mv 10-powerline-symbols.conf /etc/fonts/conf.d/
sudo mv PowerlineSymbols.otf /usr/share/fonts/OTF/然后重启终端,恢复正常：
参考：
blog.csdn.net/u011254082/article/details/52725512
http://tieba.baidu.com/p/4083807142
版权声明：本文为CoderMannul原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接和本声明。