scp or sftp copy multiple files with single command

Copy multiple files from remote to local:

$ scp your_username@remote.edu:/some/remote/directory/\{a,b,c\} ./

Copy multiple files from local to remote:

$ scp foo.txt bar.txt your_username@remotehost.edu:~
$ scp {foo,bar}.txt your_username@remotehost.edu:~
$ scp *.txt your_username@remotehost.edu:~

Copy multiple files from remote to remote:

$ scp your_username@remote1.edu:/some/remote/directory/foobar.txt \
your_username@remote2.edu:/some/remote/directory/

Source: http://www.hypexr.org/linux_scp_help.php