tmux.conf

#bind-key [-nr] [-T key-table] key command [arguments]
#         (alias: bind)
#   Bind key key to command.  Keys are bound in a key table.  By default (without -T), the key is bound in the prefix key table.  This table is
#   used for keys pressed after the prefix key (for example, by default ‘c’ is bound to new-window in the prefix table, so ‘C-b c’ creates a new
#   window).  The root table is used for keys pressed without the prefix key: binding ‘c’ to new-window in the root table (not recommended) means
#   a plain ‘c’ will create a new window.  -n is an alias for -T root.  Keys may also be bound in custom key tables and the switch-client -T com‐
#   mand used to switch to them from a key binding.  The -r flag indicates this key may repeat, see the repeat-time option.
#   To view the default bindings and possible commands, see the list-keys command.

set-window-option -g mode-keys vi
set-window-option -g xterm-keys on
#set -g terminal-overrides 'xterm*:smcup@:rmcup@'
set -g default-terminal "xterm-color"

set -g mouse off
bind-key -T copy-mode-vi MouseDragEnd1Pane send-keys -X copy-pipe-and-cancel "xclip -se c -i"


set-option -g history-limit 999999999

setenv -g SSH_AUTH_SOCK $HOME/.ssh/ssh_auth_sock

# Shift arrow to switch windows
bind -n S-Left  previous-window
bind -n S-Right next-window

# Ctrl-Up/Down cyles thru panes (no prefix)
bind-key -n "S-Up"   select-pane -t :.- \; display-panes
bind-key -n "S-Down" select-pane -t :.+ \; display-panes

# Use vim type keys for re-sizing panes
bind -r < resize-pane -L 1
bind -r > resize-pane -R 1
bind -r - resize-pane -D 1
bind -r + resize-pane -U 1

bind -n M-r source-file ~/.tmux.conf \; display-message "Configuration reloaded"

bind-key -T copy-mode-vi v send-keys -X begin-selection
bind-key -T copy-mode-vi y send-keys -X copy-selection

bind-key -T copy-mode-vi Y send-keys -X copy-pipe "xclip -sel clip -i" \; display-message "Copied to clipboard"
bind-key -n C-x run-shell "~/bin/tmux-autocomplete >/tmp/tmux-autocomplete.log 2>&1"

# Split window horizontally and vertically.
bind-key -T prefix -n | split-window -h -c '#{pane_current_path}'
bind-key -T prefix -n _ split-window -v -c '#{pane_current_path}'

unbind-key -n Pageup
is_vim="ps -o state= -o comm= -t '#{pane_tty}' \
    | grep -iqE '^[^TXZ ]+ +(\\S+\\/)?g?(view|n?vim?x?)(diff)?$'"
#bind-key -n Pageup if-shell "$is_vim" "send-keys Pageup" "copy-mode -u"
bind-key -n S-Pageup if-shell "$is_vim" "send-keys Pageup" "copy-mode -u"
bind-key -n S-Pagedown send-keys Pagedown