Script to toggle the vertical size of current tmux pane to maximum

tmux-vertical-toggle.sh

#!/usr/bin/env bash
#
# author: matthias@opennomad.com
# inspiration from https://www.reddit.com/r/tmux/comments/7r8otc/is_there_short_command_to_expansetoggle_tmux_pane/
#
# This script toggles the vertical size of the current tmux pane to maximum
# Note that the other panes in the same column will still be visible, but
# they will be only one line tall.
#
# Installation:
# Save the script as `tmux-vertical-toggle.sh` and make it executable.
# Then bind this in tmux to (for example) a capital Z
# and make sure to change the path to your chosen install path.
#
### bind-key 'Z' run "~/bin/tmux-vertical-toggle.sh"
#

# we need a statefile to bind this to a key in tmux
# feel free to change this
TMUX_VERTICAL_STATE_FILE="${HOME}/.tmux-vertical"

if [[ -f "${TMUX_VERTICAL_STATE_FILE}" ]]; then
  # read the layout from the state file
  TMVertLayout=$(<${TMUX_VERTICAL_STATE_FILE})
  # come back to the previous layout
  tmux select-layout "$TMVertLayout"
  # remove the state file
  rm ${TMUX_VERTICAL_STATE_FILE}
else
  # save the current layout
  TMVertLayout=$(tmux list-windows |awk '$NF~/active/ {print $7}');
  TMVertLayout=${TMVertLayout: :-1}
  # write the layout to the state file
  echo ${TMVertLayout} > ${TMUX_VERTICAL_STATE_FILE}
  # #resize the active pane height
  tmux resize-pane -y 100
fi