Bash script to compare file all the files exits or not

Currently i am building a script like based on region parameter it will filter the records in config file and then it will create a text file like ab.txt and it will read the path location in that file and now i need to compare the files name in the config file to files in the path of the config file if the file exists it has to say file exists and list of the file that are exists if file not exists list of the files that are not exists
note: in my real time file name is going to change daily in that first three characters is only going to match

My script

#!/bin/bash

SOURCE_CONF="./test.properties"

#input region name
region="$1"
echo $region
cwd=$(pwd)
calu=$(grep $region test.properties > ab.txt)

IFS=$'\n'

#loop to read the config one line at a time
while read p; do
    echo $p

    a=($(echo "$p" | tr '|' '\n'))
    echo "Region is:" "${a[0]}"
    echo "path is:""${a[3]}"
    path="${a[3]}"
    #remove white space before path
    echo $cwd
    FOO_NO_LEAD_SPACE="$(echo -e $path | tr -d '[:space:]')"
    echo "path is:"$FOO_NO_LEAD_SPACE
# change to path spacified in the config file
    sh -c 'cd $FOO_NO_LEAD_SPACE && echo "in the subshell" && echo $pwd && echo "exit subshell" && exec pwd'
    echo $cwd
    echo "--------------------"
done < ab.txt

echo "abc"

My config file

region | Module |country code | filepath |filename


APJ | WDMD | MYS |/c/Users/vattikun/desktop | MYS*ADPGV*.XML
APJ | WDED | EUR|/c/Users/vattikun/desktop/Payroll Support | EUR*ADPGV*.XML

APJ | WDMD | RER|/c/Users/vattikun/desktop/Payroll Support | RER*ADPGV*.XML

APJ | WDJD | EYZ|/c/Users/vattikun/desktop/Payroll Support | EYZ*ADPGV*.XML


EMA | WDMD | AUS|/c/Users/vattikun/desktop | AUS*ADPGV*.XML
EMA | WDMD | AYS| /c/Users/vattikun/desktop | AYS*ADPGV*.XML

AMS | WDMD |ITI| /c/Users/vattikun/desktop | ITI*ADPGV*.XML
 AMS |WDMD |AYS| /c/Users/vattikun/desktop | AYS*ADPGV*.XML
 

Please deploy way more care when phrasing your request. WHAT do you want to achieve - in the file system, test real file existence pointed to by fields 4 and 5 of your config file? Ans attempts / ideas / thoughts from your side? In your script, there's no evidence of fulfilling above request, on top of it distorting the path names.