I used FUSE and perl to make fuse-colors, a script that allows you to automatically wrap commands in arbitrary bash
Strace lets you see patterns in system calls made by processes. This post covers the wall of “close” system calls often seen by daemonized processes.
Use rsync’s –files-from and –rsync-path option to create a dynamic list of files to sync from the remote.
rsync has a –rsync-path parameter that allows you to cheat and specify commands to run before executing rsync.