tmux.conf

# Remember that tmux is heavily aliased
# bind == bind-key
# set  == set-option
# setw == set-window-option
# etc.

# Faster prefixing
set -g prefix C-@
bind C-@ last-window
unbind C-b

# send prefix to inner session
bind a send-prefix

# First window should be 1 (easier acces on number row)
set -g base-index 1
set -g pane-base-index 1

# A little more history (default is 2000)
set -g history-limit 5000

# Faster repetition
set -sg escape-time 1

# A little help to the annoying window resizes
setw -g aggressive-resize on

# Notifications
setw -g monitor-activity on
set -g visual-activity off

# vi is our religion
setw -g mode-keys vi

# vim stuff for vi mode, copy and pasting
bind -t vi-copy 'v' begin-selection
bind -t vi-copy 'y' copy-selection
bind -t vi-copy 'Y' copy-end-of-line
unbind ]
bind p paste-buffer
# following echo is to copy no newline char
bind y \
  run -b "echo -n $(tmux show-buffer) | xclip -sel clip -i" \;\
  display "Copied tmux buffer to system clipboard"

# vim movements for pane switching
unbind j
unbind k
unbind h
unbind l
# these movements had -r before, which causes a slight delay,
# when going only one step, therefore scratched
bind j select-pane -D
bind k select-pane -U
bind h select-pane -L
bind l select-pane -R

# new panes and windows - newer tmux version need us to declare
# the starting directory manually
bind \ split-window -h -c '#{pane_current_path}'
bind - split-window -v -c '#{pane_current_path}'
bind c new-window -c '#{pane_current_path}'

# additional window movements, just like tab movement in vim
bind -r C-L next-window
bind -r C-H previous-window

# Status bar and general style
set -g status-position top
set -g status-utf8 on
set -g status-bg default # same as terminal bg
set -g status-fg white
#set -g status-interval 60 # leave the default 15
set -g status-left-length 30
set -g status-left '#[fg=colour248]#I:#P #[fg=colour45]#H'
set -g status-justify centre
set -g status-right-length 90
set -g status-right '#[fg=yellow]CPU: #[default]#(cut -d " " -f 1 /proc/loadavg) #[fg=yellow]Mem: #[default]#(~/.tmux/memstats.sh)'

set-window-option -g window-status-current-fg colour226
# The status colors are reversed by default, that's why we
# switch their style attributes to none
setw -g window-status-bell-attr none
setw -g window-status-bell-fg red
setw -g window-status-bell-bg black
setw -g window-status-content-attr none
setw -g window-status-content-fg yellow
setw -g window-status-content-bg black
setw -g window-status-activity-attr none
setw -g window-status-activity-fg yellow
setw -g window-status-activity-bg black
# Time status line messages get shown
set -g display-time 1250

# Toggle mouse on and off
#
# Take note, these are two multiline strings.
# We cannot query for the mouse mode itself it seems, that's why
# we need to ask for another value.
bind m \
  if '[ "`tmux show -g -v mouse-select-pane`" = "off" ]'\
    "set -g mode-mouse on;\
     set -g mouse-resize-pane on;\
     set -g mouse-select-pane on;\
     set -g mouse-select-window on;\
     display 'Mouse enabled'" \
    "set -g mode-mouse off;\
     set -g mouse-resize-pane off;\
     set -g mouse-select-pane off;\
     set -g mouse-select-window off;\
     display 'Mouse disabled'"

# reload the source
bind r source-file ~/.tmux.conf\; display 'Reloaded tmux configuration'

# kill pane without confirmation prompt
bind Q kill-pane

# open a little debug pane on the bottom
bind b split-window -v -p 20 -c '#{pane_current_path}'