Nov 08
    Lost your shell connection? Need multiple shell sessions?
    You are logged into your remote server via SSH and happily plucking along at your keyboard and then it happens. Suddenly, the characters stop moving and then you get the dreaded "Connection Closed" message. You have just lost your session. You were halfway through some task and now you have to start over. Ugh. Well you can prevent this from happening by using screen. Screen can not only save you from disconnection disasters, but it also can increase your productivity by using multiple windows within one SSH session.

  Screen真是个好东西。今天要用nutch爬东西,所以正好是需要这个东西了。用了Screen也不怕突然的terminal断线。

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