Problema de saída de eco e gato

Question

Estou tentando executar este script:

#!/bin/bash
for file in /home/dima/Downloads/dir/*
do
  if [ -f "$file" ]
  then
    echo "SSS::################====================#####################" >> allfiles.txt
    cat $file >> allfiles.txt
    echo "################====================#####################" >> allfiles.txt
  fi
done

Funciona, mas as strings que ecoam impressas só podem ser vistas no final do arquivo quando eu precisar delas entre as saídas de "cat". Como consertar isso?