什么是GNU屏幕?

问题描述

什么是GNU屏幕?

推荐答案

什么是 GNU屏幕?太好了！

Erm，一个稍微有用的答案:它允许您在一个终端上运行多个控制台应用程序或命令.有点像选项卡式终端仿真器.实际上，这就是事实(只是使用常规的GUI工具包无法做到)

Erm, a slightly more useful answer: it allows you to run multiple console applications, or commands, in one terminal. Kind of like a tabbed terminal emulator. In fact, that's exactly what it is (just not done with the regular GUI toolkits)

为什么这么好?很简单，您可以在屏幕会话中运行程序(运行screen并运行默认外壳程序，运行screen myapp并在会话中运行myapp)，然后按 + (屏幕控制序列)，然后按( + ，)分离.

Why is it so great? Simple, you can run a program in a screen session (Run screen and it runs your default shell, run screen myapp and it runs myapp in the session), hit + (the screen control sequence) and then press (+,) to detach.

该程序一直在后台运行，但是 与mycmd &不同，您可以运行screen -r重新连接会话，一切就如您所愿.您可以将输入发送到命令，如果它是curses UI，则所有操作仍然像是真实"终端一样.

The program keeps running in the background, but, unlike doing mycmd &, you can run screen -r to reattach the session, and everything is as you left it. You can send input to the command, if it's a curses UI, everything still works just like if it were a "real" terminal.

它在控制台IRC客户端中非常流行-您可以运行(说)screen irssi并从可以通过SSH进行连接的任何位置重新附加会话.

It's very popular with console IRC clients - you can run (say) screen irssi and reattach the session from anywhere you can SSH from.

一些有用的命令:

• + ，在会话中创建新的虚拟终端(或窗口")
• + ，和 + ，可以在多个窗口中循环
• + ，选择窗口1， + 选择窗口4，依此类推
• + ， + 可以在最后两个活动窗口之间滑动
• + ， + (大写a)允许您重命名当前窗口
• + ，(对我来说，这是 + +, to make a new virtual terminal (or "window") in the session
• +, and +, to cycle through multiple windows
• +, to select window 1, +, to select window 4 and so on
• +, + to flick between the last two active windows
• +, + (upper-case a) allows you to rename the current window
• +, (for me, that's + - the quote mark) lists windows, you can use the arrows and select one. Also useful with the "tab bar" setting I'll list in a second

我偶然发现的其他一些有用的东西:

A few other useful things I've stumbled across:

• 启动屏幕时使用-U标志，以便它支持Unicode(例如screen -xU)
• -x标志允许您多次重新连接同一会话. (-r断开现有连接)
• 您可以在状态栏上做一些有趣的事情.我有显示[ hostname ][ 0-$ bash (1*$ irssi) ][16/09 9:32]的设置(在主机名上运行，它有两个窗口.这是由我的.screenrc中的hardstatus行设置的(答案的末尾)

• Use the -U flag when you launch screen so it supports Unicode (for example, screen -xU)
• The -x flag allows you to reattach the same session multiple times. (-r disconnects existing connections)
• You can do interesting stuff with the status bar. I have my setup to display [ hostname ][ 0-$ bash (1*$ irssi) ][16/09 9:32] (Running on hostname, it has two windows. This is set by the hardstatus lines in my .screenrc (at the end of the answer)

startup_message off
vbell off
hardstatus alwayslastline
hardstatus string '%{gk}[ %{G}%H %{g}][%= %{wk}%?%-Lw%?%{=b kR}(%{W}%n*%f %t%?(%u)%?%{=b kR})%{= kw}%?%+Lw%?%?%= %{g}]%{=y C}[%d/%m %c]%{W}'

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