Check Delphi .dproj against files on disk by Attila Kovacs originally from https://pastebin.com/fcsiLc6Q

prfiles.sh

#!/bin/bash

# !!! Be careful with scripts, always do your backup or play on a copy !!!

if [[ $# -eq 0 ]] ; then
    echo 'usage: prfiles.sh project.dproj'
    exit 1
fi

declare file_content=$( cat $1 | sed -nr "/DCCReference Include/I{s/(.*)\"(.*)\"(.*)/\2/g;p}" )

shopt -s nocasematch

for i in `find . -name "*.pas" -type f -printf '%f\n'`; do
    [[ ! " $file_content " =~ $i ]] && echo $i "not in dproj"
done

exit