Copy/Paste from tmux
Eric Swenson
Nicholas Marriott
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Eric Swenson
don't turn up anything. Do you know that such a terminal program exists
for Ubuntu 22.04 LTS?
-- Eric
Nicholas Marriott
Eric Swenson
I did. That was where I found all the references to binding keys
for xsel.
However, I looked at it again, and found the section where it said that xterm supported OSC 52. So I configured the required:
XTerm*disallowedWindowOps: 20,21,SetXprop
Nicholas Marriott
Eric Swenson
I'm trying to simply highlight the text with the mouse -- which does highlight, and then use the "Copy ..." contexts menu that comes up to copy to the system clipboard. This works fine on my Mac -- just not on Linux.
I've also tried entering copy mode, selecting the start and end
via keyboard -- and that also doesn't work.
-- Eric
cheyrn
Have you tried setting up the tmux-yank plugin? That is what I am
using to copy to the clipboard, together with xsel.
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Nicholas Marriott
Eric Swenson
No I haven't. I'll look for that plugin and try it. Thanks.
I'm wondering, however, whether my issue has something to do with SSH (remote access). I just tried an experiment:
From xterm on my Ubuntu 22.04 LTS system, I proved to myself that X windows copy/paste worked fine. Then I started up tmux, and tried selecting with mouse and pasting in the tmux window. That worked fine too. Then I exited tmux, and SSH'ed to my VPS. I tried X windows style copy/paste, and this worked fine (not running tmux remotely yet). Then I started up tmux (the use case that I need to get working) from my SSH session on the VPS. Now, copy/paste dosn't work any more. tmux enters copy mode when I use the mouse, highlights the text when I select it with the mouse, gives me a popup menu that offers to copy the line, and when I select that menu item and release the mouse, and try to paste the result, I get nothing.
So it is the combination of SSH and tmux that prevents tmux from letting me copy/paste. Does that suggest anything?
-- Eric
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Eric Swenson
So I tried this again after verifying that I was accessing my VPS
from an xterm window, with "ssh -X", and that my tmux on the VPS
had the proper set-clipboard setting (external), that "tmux info |
grep Ms" showed the proper string, I bound copy-mode C-w as such:
bind -Tcopy-mode MouseDragEnd1Pane send -X copy-pipe-and-cancel 'xsel -i'
and things are acting differently -- although not yet what
I want. First of all, when I'm running irssi in the tmux
session, I can select a URL (the use case I want to work) with
the mouse, and have it immediately get copied. I can then
immediately paste it with a middle-mouse click in tmux. I can
also (much more importantly) go to a Terminal window on my local
Ubuntu machine, and use the middle-mouse button to paste it in
the shell. However, what I really want to be able to do is to
paste that URL into a browser address bar. That doesn't work. A
yucky workaround is to paste the URL into a terminal shell, and
then use Control-Shift-C to copy it to the *real* system
clipboard, and then I can paste it into the address bar of the
browser.
But it shouldn't be this difficult. On macOS, I can simply
select the URL (in the irssi/tmux/ssh remote session) and paste
it directly into my browser's address bar.
Given that I am now managing to get the string copied such
that I can paste it in a terminal shell (didn't use to be able
to do that, so progress), why can X paste it into the GNOME
Terminal, but not make it to whatever system clipboard is
necessary to allow me to paste it into a browser (Brave, like
Chrome) browser?
-- Eric
Eric Swenson
I forgot to send this before the last message I sent to the list:
Ah. There is some interference here. The use case I was *really* trying to get working was copying text from an irssi client running within a tmux session on a remote host accessed with ssh.
It would appear that the popup is coming from irssi. If I use
another tmux window (not running irssi), I can select text with a
mouse, and have it immediately "copied" (somewhere) when I
release. However, it still never makes it to my system clipboard
(local system).
Let me re-check everything in my tmux configuration on the remote
system. I'd really not like to be required to use xterm and X (as
well as X forwarding over SSH), but I will do that if necessary.
<I've done the above and sent the results in my previous message to the list>
-- Eric
Scott Rochford
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Eric Swenson
On Jun 6, 2023, at 19:58, Scott Rochford <annihi...@gmail.com> wrote:
Trey Blancher
I'd like to add that X.org has the concept of two "clipboards," the copy buffer
which in many GUI programs you put data into with Ctrl-C after making your
selection (or through a context menu, e.g. Edit/Copy, Edit/Cut, etc.). It also
has the concept of a selection buffer, that gets populated whenever you
highlight (select) text with your mouse (with no other keyboard or menu events).
This selection buffer you paste with middle click usually.
Now, depending on your window manager (WM) or Desktop Environment (DE, sounds
like you're using GNOME), you can combine these buffers into one (essentially
telling your environment to put selected text into the copy buffer, which gets
populated whenever you select text). That may also be at play here (I'm not
sure what GNOME defaults to for this nowadays).
Typically highlighted text from mouse events is handled solely within your local
terminal emulator. tmux shouldn't have any bearing on this usually unless
you've enabled mouse mode (you've witnessed firsthand how difficult that can be
with X11 Forwarding). You stated your problem seems to be with irssi in a
remote tmux window; you're likely bitten by the common problem of URLs being
wrapped within irssi (so you can't just click the link to launch the URL in your
configured web browser; the URL will be incomplete). I haven't used irssi in a
long time, but weechat (another CLI IRC client) you can issue the '/window bare'
command to load the channel buffer into a pager (like less or more) where the
terminal emulator sees the entire URL (i.e., not broken up by wrapping) so you
can merely click on it rather than copying it somewhere else and navigating that
cumbersome way. I'd see if you can configure irssi similarly. I also use a
similar feature in mutt/elinks to solve the same problem in email.
IIRC, irssi was missing a lot of features the last time I tried it, a lot of
common IRC functionality had to be added manually by the user.
My $0.02. Hope this helps.
Trey Blancher
tr...@blancher.net
On Wed, Jun 07, 2023 at 12:58:27PM +1000, Scott Rochford wrote:
> Dealing with 3 clipboards here... even ignoring the tmux clipboard, the X
> vs Gnome (terminology? - the one you refer to as the *real* system
> clipboard) clipboard confusion has been a bad Linux user experience
> problem for a long time now. Are you aware that you can usually use
> middle-mouse-click to paste from the X clipboard directly?
>
> >>> I'm trying to simply highlight the text with the mouse -- which does
> >>> highlight, and then use the "Copy ..." contexts menu that comes up to
> >>> copy to the system clipboard. This works fine on my Mac -- just not
> >>> on Linux.
>
> >>> I've also tried entering copy mode, selecting the start and end via
> >>> keyboard -- and that also doesn't work.
>
> >>> -- Eric
>
> >>> On 6/6/23 13:56, Nicholas Marriott wrote:
>
> >>>> How are you copying from tmux?
>
>
> >>>>> I did. That was where I found all the references to binding keys
> >>>>> for xsel.
>
> >>>>> However, I looked at it again, and found the section where it said
> >>>>> that xterm supported OSC 52. So I configured the required:
>
> >>>>XTerm*disallowedWindowOps: 20,21,SetXprop
>
> >>>>> in my ~/.Xresources, and fired up xterm. It has the same problem.
> >>>>> Nothing I copy out of my tmux session makes it to the system
> >>>>> clipboard.
> >>>>> -- Eric
> >>>>> On 6/6/23 13:50, Nicholas Marriott wrote:
>
> >>>>>> Read the clipboard page on the tmux wiki.
>
>
> >>>>>>> Thanks. Google searches for "OSC 52" AND terminal AND "Ubuntu
> >>>>>>> 22.04 LTS"
> >>>>>>> don't turn up anything. Do you know that such a terminal program
> >>>>>>> exists
> >>>>>>> for Ubuntu 22.04 LTS?
>
> >>>>>>> -- Eric
>
> >>>>>>> On 6/6/23 13:46, Nicholas Marriott wrote:
> >>>>>>> > terminal which supports OSC 52
>
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Eric Swenson
— Eric (KC6EJS)
> On Jun 6, 2023, at 20:32, Trey Blancher <tr...@blancher.net> wrote:
>
> Eric,
Nicholas Marriott
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Tobias Damisch
If you want to copy text from a shell into the system clipboard,
try highlighting it with the mouse and copy it using Ctrl+Shift+c.
This should typically work. I have mouse mode disabled in tmux,
so highlighting with mouse is something the terminal handles in my setup.
> Gesendet: Mittwoch, 07. Juni 2023 um 06:06 Uhr
> Von: "Eric Swenson" <er...@swenson.org>
> An: "Trey Blancher" <tr...@blancher.net>
> Cc: "Scott Rochford" <annihi...@gmail.com>, "Nicholas Marriott" <nicholas...@gmail.com>, "tmux-users" <tmux-...@googlegroups.com>
> Betreff: Re: Copy/Paste from tmux
> To view this discussion on the web, visit https://groups.google.com/d/msgid/tmux-users/F516F9F1-9BC4-4966-AC51-3AE7A9C8F822%40swenson.org.
>
Eric Swenson
However, the thing to note in my situation is this: this all works as expected (even with mouse mode enabled in the remote tmux) under macOS. It is just failing in Ubuntu/GNOME. This suggests, to me, that it is not my tmux config that is the problem or needs tweaking. Maybe this is a GNOME issue?
— Eric (KC6EJS)
> On Jun 7, 2023, at 04:18, Tobias Damisch <tobias_...@gmx.at> wrote:
>
> Just because I think it hasn't been mentioned yet:
Eric Swenson
If would appear that all my issues were due to my using "set -g mouse on" in my .tmux.conf on the remote computer. Turning off mouse mode allows me (now) to copy URLs and other text from my irssi tmux session and paste them in the command line or in the browser with no issues.
Thanks all for your help on this matter. I will learn to deal
without mouse mode!
-- Eric