Command-line utility to position windows

window.sh

#!/bin/bash
set -x

dim=$(wmctrl -d | head -n 1 | grep -Eho '[0-9]{4}x[0-9]{3,4}' | tail -n 1)
width=$(echo $dim | cut -d x -f 1)
#height=$(echo $dim | cut -d x -f 2)
height=2130
margin=0
maxWidth=$(( $width - 2*$margin ))
halfWidth=$(( $width/2 - 2*$margin ))
#TODO maxHeight=$(( $height - 2*$margin ))
maxHeight=$(( $height - 2*$margin ))
halfHeight=$(( $height/2 - 2*$margin ))

if [[ $1 == 'c' ]]; then
  x=$(( $width/3 + $margin))
  y=$margin
  w=$(( $width/3 - 2*$margin))
  h=$maxHeight
elif [[ $1 == 'f' ]]; then
  x=$margin
  y=$margin
  w=$maxWidth
  h=$maxHeight
elif [[ $1 == 'l' ]]; then
  x=$margin
  y=$margin
  w=$halfWidth
  h=$maxHeight
elif [[ $1 == 'r' ]]; then
  x=$(( $width / 2 + $margin))
  y=$margin
  w=$halfWidth
  h=$maxHeight
elif [[ $1 == 't' ]]; then
  x=$margin
  y=$margin
  w=$maxWidth
  h=$halfHeight
elif [[ $1 == 'b' ]]; then
  x=$margin
  y=$(( $height / 2 + $margin))
  w=$maxWidth
  h=$halfHeight
elif [[ $1 == 'tl' || $1 == 'lt' ]]; then
  x=$margin
  y=$margin
  w=$halfWidth
  h=$halfHeight
elif [[ $1 == 'bl' || $1 == 'lb' ]]; then
  x=$margin
  y=$(( $height / 2 + $margin))
  w=$halfWidth
  h=$halfHeight
elif [[ $1 == 'tr' || $1 == 'rt' ]]; then
  x=$(( $width / 2 + $margin))
  y=$margin
  w=$halfWidth
  h=$halfHeight
elif [[ $1 == 'br' || $1 == 'rb' ]]; then
  x=$(( $width / 2 + $margin))
  y=$(( $height / 2 + $margin))
  w=$halfWidth
  h=$halfHeight
fi

wmctrl -r :ACTIVE: -e 0,${x},${y},${w},${h}