(поиск одинаковых файлов – дубликатов)

installing fdupes:

apt install fdupes

yum install fdupes

running search of the duplicated files in the specified directory and writing the result to the file /home/user/dir/duplicates.txt:

its better to run in screen as it is long process:

screen -S fdupes

fdupes -r /home/user/dir > /home/user/dir/duplicates.txt