AutoFetcher

### Script Fetches url for n times

URL="http://www.maaaaaaaaaak.ru"
PRBLEN=10

if [ "$#" -lt 1 ]; then
    echo "Usage: $0 <times> [url]"
    echo  "   times - how much requests should the script do"
    echo  "   url - URL to examine (default is $URL)"
    exit 255
fi

if [ "$2" != "" ]; then URL=$2; fi


check_bin() {
    if [ `which $1` == "" ]; then
         echo "$1 command not found. Please install $1"
         exit 255
    fi
}

if [ `uname -s` == "FreeBSD" ]; then
    FREE_BSD=1
    check_bin "fetch"
else
    if [ `uname -s` == "Linux" ]; then
        FREE_BSD=0
        check_bin "wget"
    else
        echo Unsupported OS `uname -s`
        exit 255
    fi
fi

total=0
err=0
while [ "$total" != "$1" ]; do
    if [ $FREE_BSD == "1" ]; then
        fetch -o /dev/null $URL > /dev/null 2>&1
    else
        wget -O /dev/null $URL > /dev/null 2>&1
    fi
    if [ "$?" != "0" ]; then
        ((err=err+1))
    fi
    ((total=total+1))
    ((percent=total*100/$1))
    ((prg=total*PRBLEN/$1))
    printf "\r["
    counter=0
    while [ $counter -lt $PRBLEN ]; do
        if [ $counter -lt $prg ]; then
            echo -n "*"
        else
            echo -n " "
        fi
        ((counter=counter+1))
    done
    echo -n "]" $total/$1 \($percent\%\)
done

echo ""

echo Total: $total
echo Err: $err