Find old WordPress installs

locate_old_wp_versions.sh

#!/bin/bash

# Finds WP installs and displays version numbers in current directory, or directory specified by -d <path>
# Very rough - needs tidy up and improvement
# Would be cool if it could look up latest version and compare any installs found to show only old installs

function usage
{
    echo "usage: locate_old_wp_versions.sh [-d | --dir] [-h | --help]"
}

# Set default dir

        if [ "$DIR" == "" ]; then
                DIR=./
        fi


# Get parameters
while [ "$1" != "" ]; do
    case $1 in
        -d | --dir )            shift
                                DIR=$1
                                ;;
        -h | --help )           usage
                                exit
                                ;;
        * )                     usage
                                exit 1
    esac
    shift
done

echo "Finding WP installs in ${DIR}"


# Needs tidy up on displaying the output

for FILE in $(find ${DIR} -path "*wp-includes/version.php"); do
                BASENAME="${FILE%.[^.]*}"
                DIRNAME="${BASENAME%/[^/]*}"
                FILENAME="${BASENAME:${#DIRNAME} + 1}"
                EXT="${FILE##*\.}"

                # FIX:  pull only the version number

                VERSION=`grep "wp_version\ =" ${FILE}`
                
                #FIX:  Compare with current WP version and only display out of date installs 
                #FIX:  Improve output display

                echo "${DIRNAME} - ${VERSION}"
done