Is there a way of displaying the currently running command (e.g. for situations where the script runs for days and you wish to retrieve the running parameters) as the tmux window name?
I.e
$ python train_net.py --lr 50 -> would cause the window name to change to python train_net.py --lr 50 instantly?
You can change tmux default config file. Usually it is in your home folder: ~/.tmux.conf. Add following lines to it:
set-option -g status-interval 1
set-option -g automatic-rename on
set-option -g automatic-rename-format '#{pane_current_command}'
You can change automatic-rename-format to any thing you like. pane_current_command means the current running command.
Then restart your tmux sessions or:
Ctrl+b then :source-file ~/.tmux.conf inside a tmux session to re read tmux config file.
Pay attention that this will automatically rename your tab if you haven't set a name for it manually, if you renamed it manually it won't make change.
For future references:
In ~/.tmux.conf add:
set-option -g status-interval 1
set-option -g automatic-rename on
set-option -g automatic-rename-format "#(ps -f --no-headers --ppid $(tmux display-message -p #{pane_pid}) | awk '{ print substr($0, index($0,$8)) }') "
set-option -g history-limit 3000
Then inside a tmux console ctrl+b :source-file ~/.tmux.conf to reload
Related
In my normal shell I create tmux sessions for running in the background with
tmux new-session -d -s my-session my-script.sh (1)
Now I want to add logging of all output via pipe-pane to the session. I know how to do this in a not-detached session (when being inside tmux):
Ctrl-B : pipe-pane -o 'cat >>~/tmp/output.log' (2)
But how can I tell tmux on creation of a detached session -- via (1) -- to add straight away the pipe-pane tmux command?
I basically look for a way in my normal shell to create detached tmux sessions with logging. - I am using tmux 1.6.
You can always combine the two commands into one tmux command (I dont have tmux 1.6 to test this on but it works for 2.2):
tmux new-session -d -s my-session my-script.sh \; pipe-pane -o 'cat >>~/tmp/output.log'
If you were using tmux 2.9 or later you can set a hook to run a command when a new session starts. Put in your ~/.tmux.conf
set-hook -g session-created "pipe-pane -o 'cat >>~/tmp/output.log'"
To cope with many sessions, you might include the session name in the filename, e.g. output.#{session_name}.log.
I am using tmux in a ssh session.
I am using multiple panes and windows.
I have mouse-mode enabled which works great so far.
When I select text it gets automatically copied to the tmux-buffer and the window jumps to the end.
So if i scroll up and click on something it jumps to the end...
When I switch between panes a copy command is triggered and the output goes to the end.
I really dislike this behaviour and I'd rather have to press a button to copy or click q to finish copy mode or something.
Is it possible to disable auto-copy // auto jump to the end on mouse button release?
I am running tmux 2.0 on the server through ssh. In Terminator on the client.
# config
#{{{
# 0 is too far from ` ;)
set -g base-index 1
# Automatically set window title
# set-window-option -g automatic-rename on
# set-option -g set-titles on
set -g default-terminal screen-256color
set -g history-limit 10000
set -g status-keys vi
setw -g mode-keys vi
setw -g mode-mouse on
set -g mouse-select-window on
set -g mouse-select-pane on
set -g mouse-resize-pane on
# No delay for escape key press
set -sg escape-time 0
#}}}
# bind keys
#{{{
# Reload tmux config
bind r source-file ~/.tmux.conf
# remap prefix to Control + a
set -g prefix C-a
# bind 'C-a C-a' to type 'C-a'
bind C-a send-prefix
unbind C-b
# switch tabs with <b n>
bind b previous-window
# vi like paste
bind-key p paste-buffer
# quick pane cycling
unbind a
bind a select-pane -t :.+
bind-key v split-window -h
bind-key s split-window -v
bind-key J resize-pane -D 10
bind-key K resize-pane -U 10
bind-key H resize-pane -L 10
bind-key L resize-pane -R 10
bind-key M-j resize-pane -D 2
bind-key M-k resize-pane -U 2
bind-key M-h resize-pane -L 2
bind-key M-l resize-pane -R 2
# Vim style pane selection
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind -n M-Down select-pane -D
# find asci keycodes with "sudo showkey -a" - works only tmux >1.7
# us-keyboard like [ ]
bind-key -r 0xc3 display 'c3 prefix binding hack'
bind-key -r 0xb6 copy-mode # ö
bind-key -r 0xa3 paste-buffer # ä
# us { }
bind-key -r 0x96 swap-pane -U # Ö - swap pane to prev position
bind-key -r 0x84 swap-pane -D # Ä - to next pos
#}}}
As of tmux 2.5 you should use
unbind -T copy-mode-vi MouseDragEnd1Pane
I'd say the easiest way nowadays is to just use the tmux-yank plugin and add the yank_action configuration option:
# ~/.tmux.conf
set -g #yank_action 'copy-pipe' # or 'copy-pipe-and-cancel' for the default
Additionally, tmux-yank also manages for you the differences between OS clipboards (Linux, macOS, WSL) and adds some very useful shortcuts for copying the current command line content and cwd. Highly recommended.
i was able to get mouse selection to stop jumping to the bottom in tmux (version 2.2) by adding the following to my ~/.tmux.conf:
setw -g mouse on
setw -g mode-keys vi
unbind -t vi-copy MouseDragEnd1Pane
caveat: this has the side effect of turning on vi mode.
i found this issue to be relevant, and found the configuration above in these dotfiles.
The following worked for me. Thanks to #stagebind on github!
For vi-mode config, https://github.com/tmux/tmux/issues/140#issuecomment-321144647:
unbind -T copy-mode-vi MouseDragEnd1Pane
For non vi-mode config, https://github.com/tmux/tmux/issues/140#issuecomment-302742783:
# 2.4+
unbind -T copy-mode MouseDragEnd1Pane
# 2.2 - 2.3
unbind -t vi-copy MouseDragEnd1Pane
Took me some time to get the correct answer.
I am also using Alacritty and cannot enable copy on mouse select because of an issue with MouseDragEnd1Pane as described in: https://github.com/jwilm/alacritty/issues/1002.
Selecting the text with the mouse and then if I need copy it using the key y works for me with this config:
bind -T copy-mode-vi y send -X copy-pipe "reattach-to-user-namespace pbcopy"\; display-message "copied to system clipboard"
Complete config for copy and pasting with mouse and vi key binding support looks like this:
set-option -g default-command "reattach-to-user-namespace -l bash"
set -g mouse on
bind P paste-buffer
bind-key -T copy-mode-vi v send-keys -X begin-selection
bind -T copy-mode-vi y send -X copy-pipe "reattach-to-user-namespace pbcopy"\; display-message "copied to system clipboard"
bind-key -T copy-mode-vi r send-keys -X rectangle-toggle
## don't jump to bottom on mouse select - when vi-mode enabled - 2.4+
#unbind -T copy-mode MouseDragEnd1Pane
## don't jump to bottom on mouse select - when vi-mode enabled - 2.2 - 2.3
#unbind -t vi-copy MouseDragEnd1Pane
## don't jump to bottom on mouse select - when vi-mode enabled
unbind -T copy-mode-vi MouseDragEnd1Pane
I am using OS X.
as of tmux 2.2 the feature copy-selection -x is available. With the following options tmux stays in copy mode after selecting. Choose the one that fits your mode setting.
bind-key -t vi-copy MouseDragEnd1Pane copy-selection -x
bind-key -t emacs-copy MouseDragEnd1Pane copy-selection -x
Looks like upgrading to tmux 2.1 might solve your problem.
Reasonable mouse support in tmux
In version 2.1 they changed mouse-mode, mouse-select-window/pane etc with single mouse switch. Mouse actions now generates key events that can be mapped as ordinary keys.
I am running tmux (version 1.9a) on a Mac OS X 10.6.8 with iTerm 2.
My default shell is tcsh, and I have several alias (and path, environment variables) defined in my .tcshrc file.
The problem is that all the alias are not defined when I run tmux, although I set tmux to run with the tcsh shell by default.
Addition: On the other hand the environment variables set in my .tcshrc are correctly passed in tmux. It seems a problem related just to alias...
Below my .tmux.conf
# copy and paster
set-option -g default-command "reattach-to-user-namespace -l tcsh"
# Define the default shell
set-option -g default-shell /bin/tcsh
# Avoid problems with alias defined in .tcshrc
set-option -g default-command $SHELL
set-option -g default-command "source .tcshrc"
# look good
set -g default-terminal "screen-256color"
set -g prefix C-a
unbind C-b
bind C-a send-prefix
# a mouse
set -g mode-mouse on
setw -g mouse-select-window on
setw -g mouse-select-pane on
# # Scroll History
set -g history-limit 30000
# Count sessions start at 1
set -g base-index 1
# act like vim
setw -g mode-keys vi
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R
bind-key -r C-h select-window -t :-
bind-key -r C-l select-window -t :+
unbind [
bind -t vi-copy v begin-selection
bind -t vi-copy y copy-selection
# after copying to a tmux buffer, hit y again to copy to clipboard
bind y run "tmux save-buffer - | reattach-to-user-namespace pbcopy"
bind N swap-window -t +1
bind P swap-window -t -1
# Reload .tmux.conf
#bind R source-file ~/.tmux.conf \; display-message " Config reloaded.."
# Hit [PREFIX]-R to reorder windows (i..e from 1-4-7-9 to 1-2-3-4 keeping the right order)
bind R \
set -g renumber-windows on\; \
new-window\; kill-window\; \
set -g renumber-windows off\; \
display-message "Windows reordered..."
# Rename your terminals
set -g set-titles on
set -g set-titles-string '#(whoami)::#h::#(curl ipecho.net/plain;echo)'
# Status bar customization
# Set status bar
set -g status-justify left
set -g status-bg black
set -g status-fg white
set-option -g status-interval 5
set -g status-right-length 150
set -g status-left ""
set -g status-right "#[fg=green] %m-%d-%Y %H:%M #(whoami)#minimul.com " # Add space so I can see Growl notifications in full-screen mode
# Rather than constraining window size to the maximum size of any client
# connected to the *session*, constrain window size to the maximum size of any
# client connected to *that window*. Much more reasonable.
setw -g aggressive-resize on
# Allows us to use '<prefix>-a' <command> to send commands to a TMUX session inside
# another TMUX session
bind-key a send-prefix
# Highlight active window
set-window-option -g window-status-current-bg red
Apparently the issue was solved by keeping the line
set-option -g default-command "reattach-to-user-namespace -l tcsh"
while erasing the lines
# Define the default shell
set-option -g default-shell /bin/tcsh
# Avoid problems with alias defined in .tcshrc
set-option -g default-command $SHELL
set-option -g default-command "source .tcshrc"
And restarting iTerm2 (no source or rehash did the job).
This would be because when you launch a standard shell from the terminal, it's a login shell, but with the option you've set for tmux, it's just an additional shell.
This line:
set-option -g default-command $SHELL
actually causes it to launch as a non-login shell. You've probably got some code blocked off with:
if($?loginsh) then
...
endif
which means that it doesn't get invoked in that case.
If you change the option to:
set-option -g default-command "$SHELL -l"
It will act like a login shell; alternatively remove the default-command, and in that case it will invoke the default shell as a login shell, which should have the same effect.
As an attempt at debugging this I started with a from-scratch .tcshrc containing:
echo tcshrc
if($?loginsh) then
echo login
endif
if($?prompt) then
echo prompt
endif
with set-option -g default-command "" (the default) I saw:
tcshrc
login
prompt
with set-option -g default-command "$SHELL" I see:
tcshrc
tcshrc
prompt
with set-option -g default-command "$SHELL -l" I see:
tcshrc
tcshrc
login
prompt
with set-option -g default-command "reattach-to-user-namespace tcsh" I see:
tcshrc
tcshrc
prompt
with set-option -g default-command "reattach-to-user-namespace -l tcsh" I see:
tcshrc
tcshrc
login
prompt
I'm having some trouble getting a new session to execute a command after creation.
Here's a portion of my .tmux.conf:
set-window-option -g automatic-rename off
set-option -g allow-rename off
new -A -s 'main' -n 'servers' 'ls' # troubled line
splitw -h -p 35 htop
splitw -v
splitw -v -t 1
splitw -v -t 1
neww -n 'irc' weechat-curses
selectw -t 0
This is the line that I'm working on:
new -A -s 'main' -n 'servers' 'ls'
Here's how I open tmux:
alias tux='TERM=screen-256color-bce tmux -f ~/.tmux.conf attach-session -t main'
The 'ls' must be causing an error because when it is present, the initial pane doesn't get created. If I change it to 'top', it works fine and the command is executed.
So why does top work and not ls (or any other command I try)?
top runs until you quit. ls exits after it prints the contents of the current directory. This causes the window in which ls runs to close.
setw -t servers remain-on-exit on
should keep the the window named 'servers' from closing after its command exits, but it is complicated by the fact that the window does not exist before the new-session command is run, and after new-session returns, it may be too late to run the setw command (although you can try).
Instead, create a new session in which the default is for a window to remain after its command exists:
new -A -s 'main' -n 'servers' 'ls' # troubled line
set -t main set-remain-on-exit on
neww -n 'servers' ls
Based on your last comment, ignore the above, and replace your new command with
new -A -s 'main' -n 'servers'
send-keys -t servers.0 ls Enter
This creates a regular window, whose command is a regular shell, but then simulates typing the ls command at the first shell prompt to provide you with the list of files in that directory. After ls completes, you are back in the shell, and the pane will continue to exist until the shell itself completes.
I'm trying to become more proficient with tmux, but I ran into ( what seems to me ), a weird issue. Here's my tmux.conf:
1 TERM=screen-256color
2 set-option -g default-terminal $TERM
3
4 TMUX_COLOUR_BORDER="colour237"
5 TMUX_COLOUR_ACTIVE="colour231"
6 TMUX_COLOUR_INACTIVE="colour16"
7
8 set-window-option -g window-status-activity-bg $TMUX_COLOUR_BORDER
9 set-window-option -g window-status-activity-fg $TMUX_COLOUR_ACTIVE
10 set-window-option -g window-status-current-format "#[fg=$TMUX_COLOUR_ACTIVE]#I:#W#F"
11 set-window-option -g window-status-format "#[fg=$TMUX_COLOUR_INACTIVE]#I:#W#F"
12
13
14 set -g prefix C-a
15
16 bind-key o split-window -v
17 bind-key e split-window -h
18
19 bind-key w kill-pane
I'm trying to copy paste between two panes. So, I hit Ctrl-a-[ , and then Ctrl-space. The thing is, I don't see a visual selection of the block, and alt-w also does not work ( since I guess it's not even entering copy mode ). Is there an obvious error in my tmux.conf? Can you spot what I'm doing wrong?
tmux has an option, mode-keys, you can find it in man page.
default is emacs, but if your $EDITOR is vim/vi, tmux will use vi.
So the key binding will be in vi mode.
E.g. your Alt-w won't work, it is emacs binding. you can see a table of key-binds in tmux man page.
some related to your question:
Function vi emacs
Copy selection Enter M-w
Start selection Space C-Space
so you should go with the vi-mode keys.
I used vim mode too, and did a little customization (to make it same as vim) in my tmux.conf, maybe you could give it a try:
bind-key -t vi-copy 'v' begin-selection # Begin selection in copy mode.
bind-key -t vi-copy 'C-v' rectangle-toggle # Begin selection in copy mode.
bind-key -t vi-copy 'y' copy-selection # Yank selection in copy mode.
In case it helps, I had a correct tmux configuration (with vi like settings for selection & copy/paste) but needed to set these two environment variables in my .zshrc file (using Zsh & Neovim):
export EDITOR='nvim'
export VISUAL='nvim'