simple shell script to convert a simple php site to flat html files using wget. Pages must end in ".php", do not use url rewriting (which shouldn't matter to you if flat HTML is your desired end result anyways).

convert.sh

#!/bin/bash

###########################################################################
# Change these variables to whatever site you want to grab 
# and where you want it to be saved
# 

targetDir=''
site=''

# credentials for basic HTTP auth
user=''
pw=''

###########################################################################
# Do not touch below this area
# 

wget="$(which wget)"

# check if a command line program exists
function exists () {
  $1 -v > /dev/null 2>&1
}

function getBrew () {
  if ! exists brew ; then
    echo "installing homebrew"
    # from: http://brew.sh/
    ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
  else
    echo "Brew already installed"
  fi
}

function getWget() {
  if [ ! -f $wget ]; then
    echo "installing wget using homebrew"
    # from: http://www.merenbach.com/software/wget/
    brew update && brew install wget
    wget="$(which wget)"
  else
    echo "wget already installed"
  fi
}

function runConvert() {
  # create directoy if it doesn't exist
  if [ ! -d "$targetDir" ]; then
    mkdir "$targetDir"
  fi

  # go into dir
  cd $targetDir

  # run wget to get all files
  $wget -nH -m -k -p --http-user=$user --http-password=$pw ${site}

  # replace ".php" with ".html"
  for file in *.php
  do
    sed -i.bak s/.php/.html/g ${file} && mv "$file" "${file%.php}.html"
  done

  # do the same replacement in the index.html file since it's the only file that wasn't a .php file 
  sed -i.bak s/.php/.html/g index.html

  # kill the sed backup files
  rm -f *.bak
}

# check for Homebrew and Wget and install them if they do not exist
getBrew && getWget && runConvert