rsync is a great way to copy files between computers as it can continue after partial copies and update directories when only a few files have changed, it also supports secure file copies over ssh as shown below:
copy files locally:
rsync -rtvzP --delete --exclude=.Trash /Users/evan/ /Volumes/backup/evan/
copy local files to a remote computer excluding all the mac .DS_Store folders in the path:
rsync -ravzP --exclude=**/.DS_Store -e ssh "/Users/evan/my files/" evan@someserver.codepit.ca:/home/evan/files/
copy remote files onto a local computer:
rsync -ravzP -e ssh 10.10.238.123:"/home/evan/my files/" /Users/evan/files/
NOTE the use of " when there is are spaces in the file paths
Useful switches:
-n == dry run, very useful with --delete :o
--delete == delete files when they are missing from the source computer and present on the target