Linux: How to recover a deleted file?

Question

linux

ext4 file system. Most tools work by scanning the entire partition for deleted files. In my case, I know which file is deleted, and when, in which directory.
It is necessary to restore this file with minimal effort (preferably with window utilities).
PS By the way, it is overwritten. It would be desirable to receive the previous contents of a file. How to be?

Answer 1

Alas, there are no easy ways, except for backup.

Answer 2

if the file is still open (can be checked with lsof command)
the second column contains the pid of the processes using this file,
take it and see what is in the file descriptor directory of this process
this command will list the file descriptors opened by the process
copy the desired descriptor to the new filename
voila

Answer 3

try r-studio:
www.data-recovery-software.net/ru
did not notice PS - I think the chances in this case are zero

Answer 4

Make backups!