tmux.conf

# tmux offers the following commands:
#
#   tmux new [-s<sessionname>]  crete new tmux session
#   tmux ls                     list all running tmux sessions
#   tmux a[ttach] -t<session>   attach to a running tmux session
#   tmux kill-server            quit tmux-server and clients
#
# as well as the following shortcuts (preceded by the anchor key)
#
#  Misc
#     t     display time
#     ?     show all keyboard shortcuts
#     :     enter command mode
#
#  Sessions
#     s     (session) list and switch between sessions
#     d     detach current session
#     )     switch to next session
#     (     switch to previous session
#
#  Windows (windows are like tabs in vim)
#     c     create new window in session
#     &     close current window (requires confirmation)
#     ,     rename current window
#     w     list windows
#     l     toggle between two last focused windows (set to # here)
#     p     switch to previous window
#     n     switch to next window
#     ℕ     change to window number... (ℕ is a placeholder for {1,2,3,...})
#
#  Panes
#     "         split pane horizontal
#     %         split pane vertical
#     x         close current pane
#
#  <C-{arrow}>  resize pane {left,right,up,down}
#     z         zoom in/out pane (toggle maximise)
#     !         break out current pane to new window
#
#     o         switch to next pane
#   <C-o>       swap panes
#     q         show pane numbers (while showing switch by pressing respective number)
#  {arrow}      move one pane {left,right,up,down}
#
#
# Copy mode (enter visual mode via <prefix>[, paste selection via <prefix>])
#
#   Copy mode is entered via <prefix>[. In this mode the cursor can be moved freely
#   on the buffer. When set to vi controls vi-like movements are allowed.
#   Pressing <space> (or in current configuration "v") starts selection mode.
#   The selection is copied via <CR> (or in current copy "y")
#   To paste the current selection use <prefix>]
#
#
# Synchronize panes
#
#   To send the same commands (keystrokes) to multiple panes, first
#   create the required pane setup and then launch the command
#       :set synchronize-panes on
#


# set anchor key from <C-b> to <C-a>
# early tmux development took place in GNU screen disabling <C-a>
  unbind C-b
  set -g prefix C-a
  bind C-a send-prefix

# enable mouse scrolling support
  set -g mouse on

# configure copy mode
  setw -g mode-keys vi  # use vim like controls in "copy mode"
  bind-key -T copy-mode-vi  'v'  send -X begin-selection    #   v  : begin selection
  bind-key -T copy-mode-vi 'C-v' send -X rectangle-toggle   # <C-v>: begin block-selection
  bind-key -T copy-mode-vi  'y'  send -X copy-selection     #   y  : yank

## Panes
 # add additional easy-to-remember split pane commands
  bind | split-window -h
  bind - split-window -v
 # move between panes using vim movement keys
  bind h select-pane -L
  bind j select-pane -D
  bind k select-pane -U
  bind l select-pane -R # overrides "last-window"
 # change "last-window" binding to vim's "#"
  bind -T prefix \# last-window

# start tmux in an interactive-shell intead of a login-shell
  set -g default-command "${SHELL}"

# configuration for terminal emulator (see $TERM variable and infocmp)
  set -ga terminal-overrides ",xterm-termite:Tc"    # termite: enable truecolor (24bit)