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GNU Screen: an introduction and beginner's tutorial

69 points| vinutheraj | 16 years ago |kuro5hin.org | reply

42 comments

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[+] indigoviolet|16 years ago|reply
Stop using Screen. Switch to Tmux (http://tmux.sourceforge.net/). Screen is voodoo. Tmux isn't.

EDIT: Compare my tmux.conf (http://pastebin.com/m2394d7a2) and my screenrc (http://pastebin.com/d7bb649a5). It was much easier for me to set up tmux the way I wanted from reading the manpage, than it was to configure screen. My screenrc is a hotchpotch of cut-and-paste from lots of different sources, but I never really understood screen. Maybe that's just me.

[+] silentbicycle|16 years ago|reply
Care to clarify "screen is voodoo. tmux isn't."? That's pretty meaningless.

The overall design to tmux is quite a bit cleaner, and (having poked around in their respective sources), I know which I'd be more likely to contribute patches to. It took screen forever to get vertical splits (are they still an unofficial patch?), whereas tmux already has dwm/XMonad-style layouts.

tmux is also included in the standard OpenBSD install. Make what of that you will.

[+] zzzmarcus|16 years ago|reply
Tmux solves a problem for me. Previously I was using a combination of Screen and dvtm (http://www.brain-dump.org/projects/dvtm/) to get the equivalent of multiple screens, each with their own splits. Screen can do splits but you can't maintain splits in one screen/tab and move to another screen with independent splits. It's hard to describe, but if you've used screen or dvtm you probably know what I mean. Tmux seems to have that built in. Awesome, thanks.
[+] Sukotto|16 years ago|reply
Screen has a very large chunk of the potential market share for this sort of utility app. Tmux is going to have to be 10 times better to get people to switch. ("Screen" also has a name that's easy to remember, and to spell.)

Is tmux 10 times better than screen? Cause that's what it's going to take to get people to switch at this point.

[+] tvon|16 years ago|reply
I wish someone would write an actual article on tmux and post it here, every time screen comes up I just here statements about the vague superiority of tmux.
[+] philjackson|16 years ago|reply
For emacs users Tmux is far more intuitive, what with the bindings you expect doing what you expect. Binding C-space for begin selection in screen seemed to be impossible.
[+] jamesbritt|16 years ago|reply
I've been using tmux, but it feels less inituitive than screen, and I haven't seen as many howto's and such for tmux as I have for screen.

tmux may be better, but it feels harder to get proficient with than screen.

[+] davemabe|16 years ago|reply
Is screen really that terrible? Enough to switch to something else? Screen is largely standard at this point. Why would I want to switch to this tmux?
[+] graywh|16 years ago|reply
Tmux uses some non-standard escape sequences, e.g. ctrl- and ctrl-shift- arrow keys. In version 1.0 it's impossible to distinguish between ctrl-left and ctrl-shift-left.
[+] mattwdelong|16 years ago|reply
The day I learned about Screen...It was pure bliss..it solved so many problems I didn't know I had.

Copy/pasting, Switching between workstations while working remotely all without losing your spot. Collaboration.

If you don't know about screen, and you find yourself using a CLI even just a little bit, you should take the time to learn it.

[+] hypermatt|16 years ago|reply
First thing I install on solaris, probably my favorite unix tool also ;) Can't imagine doing giant database imports without it.
[+] dzlobin|16 years ago|reply
Does anyone use screen and vim to pair program? Me and my co-founder tried to by ssh'ing into a common box, doing 1) screen -S pairprog 2) ctrl+a :multiuser on 3) ctrl-a :acladd username. However the second person always gets an error with something regarding multiuser
[+] Psyonic|16 years ago|reply
I've done it a few times with just step 1. I'm not a screen expert, but for whatever reason we didn't need 2 and 3
[+] idoh|16 years ago|reply
While we are talking about screen - I'd really like to be able to highlight text in VIM (using the visual mode) and then be able to paste that into another screen. Does anyone know how to do this?
[+] guns|16 years ago|reply
ScreenShell. It leverages screen to create a viable REPL-buffer for vim, for any language that has an interactive interpreter.

http://www.vim.org/scripts/script.php?script_id=2711

Here's an article describing how to use it with lisp:

http://www.ktaylor.name/2009/11/vim-screen-lisp-programming-...

And finally, some key mappings to bind <C-c><C-c> to sending the current paragraph or selection to the interpreter, from any mode.

http://gist.github.com/278733

[+] yan|16 years ago|reply
I don't know off hand how to do it using a vim selection, but you can use screen selections. ^a, [, then navigation keys and space to select, ^a, ] to paste.
[+] Jach|16 years ago|reply
You could just copy into the global system buffer instead of vim's buffer. Highlight, then "+y (or d, p, etc.) (Yes you type the quotation mark and plus.) (And vim needs to be built with xterm, I think.)
[+] doki_pen|16 years ago|reply
dtach is a lightweight, minimalist alternative.

http://dtach.sourceforge.net/

[+] graywh|16 years ago|reply
Saying dtach is a minimalist alternative to screen or tmux is like saying notepad is a minimalist alternative to visual studio.
[+] tman|16 years ago|reply
It's worth grabbing the latest version of screen from git and installing it. That way you get vertical splits with ctrl-a ctrl-|. If you're running a new version of Ubuntu, you already have this.

Building screen isn't too hard. Run the autogen.sh script to generate the configure script.

[+] emilind|16 years ago|reply
I love love love screen, but ctrl-a is a terrible binding. ctrl-] works well for me.

I'm going to check out this tmux thing.