Speed up rsync with Simultaneous/Concurrent File Transfers?
Updated answer (Jan 2020) xargs is now the recommended tool to achieve parallel execution. It’s pre-installed almost everywhere. For running multiple rsync tasks the command would be: This will list all folders in /srv/mail, pipe them to xargs, which will read them one-by-one and and run 4 rsync processes at a time. The % char replaces the input argument for each command call. Original … Read more