如果要使用 sf.net 的 SSH 服務，首先必須用底下的指令產生一個為時四小時的暫時 Shell 服務 - <官方文件>
ssh -t USER,PROJECT@shell.sourceforge.net create
Logging in to your interactive shell...
You don't have an active shell at this time. For basic file transfers and
management, use web.sourceforge.net -- it allows rsync, sftp, and scp access.
If you would like to create a shell, use ssh to login using a USER,PROJECT
username with the "create" command. If you tell ssh to allocate a tty
(e.g. using -t), an interactive shell will be opened when the create is
done. Otherwise, the create command will exit when the shell becomes
ready for use. An example create that enters the shell when ready:
ssh -t USER,PROJECT@shell.sourceforge.net create
Connection to shell.sf.net closed.
jazz@jazzbook:~$ ssh -t jazzwang,greencloud@shell.sf.net create
Requesting a new shell for "jazzwang" and waiting for it to start.
creating... starting...
