ram

#!/usr/bin/env sh
#
# Saumon i3blocks scripts
# ram (current ram usage with swap warning)
#

case $BLOCK_BUTTON in
  2) gnome-system-monitor & ;; # middle click: show process manager
  3) # right click: print top RAM eaters
    ramUsed=$(free -h | tail -2 | head -1 | awk '{ print $3 " / " $2 }')
    swapUsed=$(free -h | tail -2 | tail -1 | awk '{ print $3 " / " $2 }')
    topEaters=$(ps aux --sort=-rss | tail -n +2 | head -n10 | awk '{ print $11 }' | sed 's:.*/::' | uniq)
    dunstify -t 8000 -u low "RAM usage" "$ramUsed"
    dunstify -t 8000 -u low "Swap usage" "$swapUsed"
    dunstify -t 8000 -u low "Top RAM eaters" "$topEaters"
    ;;
esac

free=$(free | tail -2)
ramUsed=$(echo "$free" | head -1 | awk '{ print int($3 / $2 * 100) }')
swapUsed=$(echo "$free" | tail -1 | awk '{ print int($3 / $2 * 100) }')

if [ "$ramUsed" -ge 90 ]; then
  color="#f44336"
elif [ "$ramUsed" -ge 85 ]; then
  color="#ff9800"
else
  color="#cccccc"
fi

if [ "$swapUsed" -ge 75 ]; then
  swapPart="<span weight='bold' color='#f44336'> [S]</span>"
elif [ "$swapUsed" -ge 50 ]; then
  swapPart="<span weight='bold' color='#ff9800'> [S]</span>"
else
  swapPart=""
fi

printf "<span color='%s'>   %s<small>%%</small></span>%s \n" "$color" "$ramUsed" "$swapPart"