Consider using rsync instead of cat to copy file

[ashish-logmaster]

rsync can do block level diffs and is more efficient is getting partial updates to a file.
https://linuxize.com/post/how-to-use-rsync-for-local-and-remote-data-transfer-and-synchronization/

Its an old school tool that just works ;-)

[Dicklesworthstone]

I tried using rsync but ran into a bunch of problems. Part of the issue is how very concurrent everything is-- you are opening up connections to tons of machines all at once. I found that basic SSH with cat was the most reliable by far. Same thing with using Paramiko-- I was able to use it for some stuff, but not for everything.