Oк. To cast aside all doubts, I made several tests and this is the result I got:
Hmm... but with the earlier version it was much faster:
In principle, I agree with this, when there are fears that unauthorized actions can be performed with working file by extraneous scripts with the addition of new entries or in the case of using unknown files, then in order to avoid dangerous consequences, it is better to always use the "n
" switch when reading a file.