firefox.sh

#!/usr/bin/bash

function trim {
  if test -p /dev/stdin; then
    data="$(</dev/stdin)"
  elif test -n "${1}"; then
    data="$*"
  else
    return 1
  fi

  echo "${data}" | sed -E -e 's/^[[:space:]]*//g' -e 's/[[:space:]]*$//g'
}

declare -A settings

settings['ff_sessionstore']="/home/guest/.mozilla/firefox/*.default/sessionstore.js"
settings['out_fmt']="%-25s %s\n"


declare -A data

data['ff_windows']=$(cat ${settings['ff_sessionstore']} | python -c 'import sys,json;data=json.loads(sys.stdin.read()); print len(data["windows"])')
data['ff_tabs']=$(cat ${settings['ff_sessionstore']} | python -c 'import sys,json;data=json.loads(sys.stdin.read()); print sum(len(t) for w in data["windows"] for t in w["tabs"])/4')

data['uptime_seconds']=$(cut -d ' ' -f1 /proc/uptime)
data['uptime_idle']=$(cut -d ' ' -f2 /proc/uptime)
data['uptime_display']=$(uptime | cut -d ',' -f 1 | trim)

data['load_average']=$(uptime | cut -d ':' -f4 | trim)

data['load_average_5min']=$(echo ${data['load_average']} | awk -F', ' '{print $1}')
data['load_average_10min']=$(echo ${data['load_average']} | awk -F', ' '{print $2}')
data['load_average_15min']=$(echo ${data['load_average']} | awk -F', ' '{print $3}')

data['mem_total']=$(free | grep -E '^Mem' | awk '{print $2}')
data['mem_used']=$(free | grep -E '^Mem' | awk '{print $3}')
data['mem_free']=$(free | grep -E '^Mem' | awk '{print $4}')

printf "${settings['out_fmt']}" "FireFox Windows" "${data['ff_windows']}"
printf "${settings['out_fmt']}" "FireFox Tabs" "${data['ff_tabs']}"
printf "${settings['out_fmt']}" "Uptime" "${data['uptime_display']}"
printf "${settings['out_fmt']}" "Uptime (seconds)" "${data['uptime_seconds']}"
printf "${settings['out_fmt']}" "Load Average (5 min)" "${data['load_average_5min']}"
printf "${settings['out_fmt']}" "Load Average (10 min)" "${data['load_average_10min']}"
printf "${settings['out_fmt']}" "Load Average (15 min)" "${data['load_average_15min']}"
printf "${settings['out_fmt']}" "Memory Total" "${data['mem_total']}"
printf "${settings['out_fmt']}" "Memory Used" "${data['mem_used']}"
printf "${settings['out_fmt']}" "Memory Free" "${data['mem_free']}"