scp file.txt user@ip-1.com:, user@ip2.com:

for dest in $(<destfile.txt); do
  scp ourfile.txt ${dest}:remote/path/
done

cat file.txt | tee >(ssh user@ip1.com "cat > file.txt")
                   >(ssh user@ip2.com "cat > file.txt")

tar cz file1 file2 file3 | tee >(ssh user@ip1.com "tar xz")
                               >( ... )

pdsh -w^destfile.txt scp hostname:/path/to/file /path/to/destfile

cscp.sh 20337.patch < hosts.txt

#!/bin/bash
while read host; do
  scp $1 ${host}:
done

project-prod-web1
project-prod-web2
project-prod-web3

cscp.sh file < hosts