Shell Programming and Scripting

$ cat test.txt
file_1|process_1|cnt_1
file_2|process_2|cnt_2

$ cat test.sh
#!/bin/bash
IFS='|'
while read fname Process_dt rec_cnt; do
  echo "$fname, $Process_dt, $rec_cnt "
  echo "Checking if the File exist in the folder..."
  if [ -f $fname ]; then
    echo "$fname Exist"
  else
    echo "$fname Does not Exist"
  fi
done < test.txt

$ ls file_?
file_1

$ ./test.sh
file_1, process_1, cnt_1
Checking if the File exist in the folder...
file_1 Exist
file_2, process_2, cnt_2
Checking if the File exist in the folder...
file_2 Does not Exist

cat fileA fileB > fileC