opt/bin/usize

   1 #!/bin/bash -i
   2 #
   3 # usize: Set urxvt (or terminal which understands the same escape sequences)
   4 #        size.
   5 # Usage: usize <width> [<height>]
   6 # Usage: usize x<width_multiplier> [x<height_multiplier>]
   7 # Usage: usize X<multiplier>
   8 #
   9
  10 width=${COLUMNS:-80}
  11 height=${LINES:-24}
  12 tmux_prefix=
  13
  14 case $# in
  15   0)
  16     echo "Usage: usize $width $height"
  17     exit 1
  18   ;;
  19   1) width=$1;;
  20   2) width=$1; height=$2;;
  21 esac
  22
  23 # Allow, eg, x2 for width or height.
  24 if [ ! "${width#X}" = "$width" ]; then
  25   width="${width/X/x}"
  26   height=$width
  27 fi
  28 if [ ! "${width#x}" = "$width" ]; then
  29   # Add a column for dividers.
  30   width=${width#x}
  31   width=$((width-1+(87*width)))
  32 fi
  33 if [ ! "${height#x}" = "$height" ]; then
  34   height=${height#x}
  35   height=$((24*height))
  36   # Add a row for tmux.
  37   [ $height -gt 1 ] && height=$((height+2))
  38 fi
  39
  40 [ -n "$TMUX" ] && tmux_prefix="\033Ptmux;\033"
  41 echo -en "$tmux_prefix\033[8;$height;$width;t"
  42 exit 0