0 #!/bin/bash
  1 res=$(free -h)
  2 total=$(printf "$res" | grep Mem | awk -F ' ' '{print $2}')
  3 used=$(printf "$res" | grep Mem | awk -F ' ' '{print $3}')
  4
  5 t="${total::-1}"
  6 u="${used::-1}"
  7 if [[ "${used: -1}" ==  "M" ]]; then
  8     r=$(echo "$u / $t * 0.1" | bc -l)
  9 elif [[ "${used: -1}" ==  "G" ]]; then
 10     r=$(echo "$u / $t * 100" | bc -l)
 11 fi
 12
 13 res=$(printf "%.0f\n" $r)
 14 color="#ffffff"
 15
 16 # image size
 17 width=85
 18 height=24

 19 bar_length=$(echo "$r * $width / 100" | bc -l)  
 20 r=$(printf "%.*f\n" 1 $r)  
 21 echo "<txt><span foreground=\"$color\">$r%</span></txt>"
 22                                                                  
 23 convert -size "$width"x"$height" canvas:white  -stroke "orange" \       
 24     -draw "fill black rectangle 0,0,$(( width - 1 )),$(( height - 1))" \
 25     -draw "fill cyan rectangle 0,0,$bar_length,$height" \
 26     $HOME/.icons/mem_bar.png           
 27                                            
 28 echo "<click>xfce4-taskmanager</click>"    
 29 echo "<tool>Used: $used / $total</tool>"                                    
 30 echo "<img>$HOME/.icons/mem_bar.png</img>"