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# To not fuck everything up when Im using Vim, use a pretty short Escape time for Alt shortcuts.
set -g escape-time 20
# Start numbering windows with the leftmost key on the keyboard and allow renumbering.
set -g base-index 1
set -g renumber-windows on
# 64k (lines, that is) of history ought to be enough for everyone.
set -g history-limit 64000
# Enable mouse.
set -g mouse on
# Allow the Linux framebuffer console to send xterm-1006 style mouse events.
# This is required for tmux to react to conmaus <>.
set -g terminal-overrides linux:kmous=\e[<
# If the outer terminal is signalling true color support, define an override, because its terminfo file might not know
# about this. This is for example the case in MS Terminal, which defines itself as xterm-256color.
if-shell '[ "$COLORTERM" = "24bit" -o "$COLORTERM" = "truecolor" ]' "set -g terminal-overrides ',xterm*:Tc'"
# When multiple clients are connected to the same session, determine the size of windows depending on where they are
# _displayed_, not where they are attached to. This allows for different screen sizes inside of the same session
# group, as long as the clients are looking at different windows each.
set -g aggressive-resize on
# When a client detaches, clean up leftover sessions in the "main" group.
# (I don't check whether the client actually had been attached to that group.)
# Note that this hook may not work when closing the terminal (or signals in general) on tmux < 2.7, see
# <>.
set-hook -g client-detached "run-shell ~/.tmux/"
# Nowadays, I have (at least) 256-color terminals everywhere, and also a real "tmux" terminfo. Compared to
# `screen-256color`, this has the added advantage of italic text working (instead of displayed with reversed colors).
set -g default-terminal tmux-256color
# However, there is one terminal where I don't really have 256 colors: The Linux Console.
if-shell '[ "$TERM" = "linux" ]' "set -g default-terminal tmux"
# Default colors.
set -g pane-border-style fg=brightblack
set -g pane-active-border-style fg=brightgreen
# Name windows automatically by their current pane. If the pane has a terminal title set, use that. If not, the current
# command running in the pane.
set -g automatic-rename on
set -g automatic-rename-format "#{?pane_title,#{pane_title},#{pane_current_command}}"
# Also set that name as the terminal emulator's title.
set -g set-titles on
set -g set-titles-string "#{?pane_title,#{pane_title},#{pane_current_command}}"
# Make the status line a lot more stylish.
# TODO: These require a powerline-compatible font. A fallback would be nice.
set -g status-interval 1
set -g status-justify centre
# With the decorations, the default of 10 characters can be too short.
set -g status-left-length 12
set -g status-right "#[fg=white,bg=default] #[fg=black,bg=white,bold]#h#[nobold] %Y-%m-%d %H:%M:%S#[fg=white,bg=default]"
set -g status-style "bg=default,fg=white"
set -g window-status-style "bg=default,fg=white"
set -g window-status-format "#{?window_zoomed_flag,⌈,} #I #W #{?window_zoomed_flag,⌋,}"
set -g window-status-separator " "
set -g window-status-current-style "fg=brightwhite"
set -g window-status-activity-style "bg=default,fg=brightyellow"
set -g window-status-bell-style "bg=default,fg=brightred"
set -g window-status-last-style "bg=default,fg=blue"
set -g window-status-current-format "#[fg=blue,bg=default]#{?window_zoomed_flag, ,}#[fg=default,bg=blue,bold] #I #[nobold] #W #[fg=blue,bg=default]#{?window_zoomed_flag, ,}"
# Give a visual indication by changing the color to blue when the prefix key has been pressed.
# When changing this, don't forget that there's a copy in .tmux.nested.conf that needs to be updated, too.
set -g status-left "#{?client_prefix,#[fg=blue]#[bg=default]#[fg=brightwhite]#[bg=blue]#S#[fg=blue]#[bg=default],#[fg=white]#[bg=default]#[fg=black]#[bg=white]#S#[fg=white]#[bg=default]} "
# Since the status line is individual "floating" elements with no continuous background, a colored background when
# entering a command looks strange. However, since this style is _also_ used for messages, and I want these to really
# stand out, I don't see any options right now.
set -g message-style "bg=blue,fg=brightwhite"
# For locking a session I'm using my vlock wrapper.
set -g lock-command vlock-with-blank
# ^Z is just way easier to type than ^B.
# ^A isnt really an alternative for me since I use it often to go to the beginning of the line.
set -g prefix C-Z
# By default, ^Z ^Z suspends the client. I dont need that, but I need to be able to send ^Z to the shell.
bind C-Z send-prefix
# On the machine I'm physicially sitting in front of, I usually run tmux inside of my terminal emulator. When I ssh
# into another machine, I'll likely use a nested tmux session there, too. Therefore, when tmux is launched inside of
# an ssh session, configure some things in a different way.
if-shell '[ -n "$SSH_CONNECTION" ]' "source-file ~/.tmux.nested.conf"
# New shells.
bind -n M-s split-window -v
bind -n M-S split-window -h
bind -n M-c new-window
# Moving around between windows.
bind -n M-, select-window -p
bind -n M-. select-window -n
bind -n M-0 select-window -t :0
bind -n M-1 select-window -t :1
bind -n M-2 select-window -t :2
bind -n M-3 select-window -t :3
bind -n M-4 select-window -t :4
bind -n M-5 select-window -t :5
bind -n M-6 select-window -t :6
bind -n M-7 select-window -t :7
bind -n M-8 select-window -t :8
bind -n M-9 select-window -t :9
# Moving around between panes.
bind -n M-h select-pane -L
bind -n M-j select-pane -D
bind -n M-k select-pane -U
bind -n M-l select-pane -R
# Moving panes around.
bind -n M-H swap-pane -d -t "{left-of}"
bind -n M-J swap-pane -d -t "{down-of}"
bind -n M-K swap-pane -d -t "{up-of}"
bind -n M-L swap-pane -d -t "{right-of}"
# Changing pane layout.
bind -n M-f resize-pane -Z
bind C-e select-layout even-vertical
bind C-w select-layout even-horizontal
bind -r C-h resize-pane -L
bind -r C-j resize-pane -D
bind -r C-k resize-pane -U
bind -r C-l resize-pane -R
# Assorted key bindings.
bind -n M-/ copy-mode
bind = setw synchronize-panes
bind C-d detach
bind C-M-d kill-session
bind C-x lock-client