Watch Stock and notify you when it reach a number or lower to a number. When notified it will create a file in /tmp/.reported.up/down.txt rm it or create a cron that delete the old bugger after certain day

watch-stock.bash

#!/bin/bash
greater= # set to a price i.e: 20
lower=  # set to a price i.e: 10
companystock= # set to a stock sympbol i.e: goog, aapl, fb (will only do for one)
[email protected]

function report() {
   local mode=$1
   local target=$2
   local price=$3
   local lockfile=/tmp/.reported.${mode}.txt

    [[ -e ${lockfile} ]] && exit 0

    echo "${price} has becoming ${mode}er than ${target}"|mail -s "${companystock} stock = ${price}"  ${email}

    touch ${lockfile}
}

function getstock() {
    local yahoobase=http://download.finance.yahoo.com/d/quotes.csv?s
    local yahooconv="${yahoobase}=USDEUR=X&f=l1"
    local stockprice=$(curl -s "${yahoobase}=${companystock}&f=l1"|tr -d '^M')
    [[ -n ${greater} ]] && (( $(echo "$stockprice >= ${greater}"|bc -l) )) && report high ${higher} ${stockprice}
    [[ -n ${lower} ]] && (( $(echo "$stockprice <= ${lower}"|bc -l) )) && report low ${lower} ${stockprice}
}

getstock