scp - Secure File Copy

scp [options] source destination
where source and destination can each take the form:
[hostname:][dir-path][filespec]
or
[ip-addr:][dir-path][filespec]
The [ ] indicates something is optional.

-p	Preserves modification times, access times, and modes from the original file.
-r	Recursively copy entire directories.

For example, if you want to copy all txt files,

scp -p *.txt 192.168.1.100:

scp -rp ROOT user@host:/tmp