Gitlab 现已全面支持 git over ssh 与 git over https。通过 HTTPS 访问请配置带有 read_repository / write_repository 权限的 Personal access token。通过 SSH 端口访问请使用 22 端口或 13389 端口。如果使用CAS注册了账户但不知道密码，可以自行至设置中更改；如有其他问题，请发邮件至 service@cra.moe 寻求协助。
This is a small optimization suggestion. There is no need to use `cat` to pipe `head` since `head` can read the file and stop when reaching the number of lines.
