Update progress.sh

#!/usr/bin/env bash

set -Eeuo pipefail

info="/run/shm/msg.html"

escape () {

    local s

    s=${1//&/\&}

file="$1"

total="$2"

bytes="0"

body=$(escape "$3")

info="/run/shm/msg.html"

if [[ "$body" == *"..." ]]; then

  body="<p class=\"loading\">${body/.../}</p>"

  body="<p class=\"loading\">${body::-3}</p>"

fi

while true

do

  if [ -s "$file" ] || [ -d "$file" ]; then

  if [ ! -s "$file" ] && [ ! -d "$file" ]; then

    bytes="0"

  else

    bytes=$(du -sb "$file" | cut -f1)

  fi