scp'ing multiple files in one pass - to multiple destinations on one target server?

Zip up the files on the sending side and unzip them on the receiving side.

tar -cf - /path/to/fileA /anoth/erpath/to/fileB /yet/more/files/* |
ssh -C destination 'cd / && tar -xf -'

You could also script an sftp session, or use rsync with the right filter.

You can copy from multiple src to one destination. scp -r src1 src2 ... dst But not to multiple destinations.

One option is to copy all the directory to a temp destination directory. Then move them back afterwards.

Look at pssh package. It has parallel-scp command. -h option allows you to provide text file with multiple hosts as destination (one per line).

I use the following command to copy multiple files to multiple destinations.

scp -r src{1,2,3} dest{1,2,3}

this command acts like the following set of commands

scp -r src1 dest1

scp -r src1 dest2

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scp -r src3 dest2

scp -r src3 dest3