I am trying to keep my music folder synced between my ubuntu desktop and my android phone. Both my devices are usually connected via LAN. I don't wanna use internet to sync.
How can I do this? Thanks in advance.
My favorite software for such tasks is FreFileSync (http://sourceforge.net/projects/freefilesync/), "a folder comparison and synchronization tool providing highly optimized performance and usability without a needlessly complex user interface."
Ubuntu package and installation instructions can found here: http://launchpad.net/freefilesync
Launch the terminal (Ctrl+Alt+T) and run these commands:
OR You can also have a look at the answers (e.g. rsync) here: How to Synchronize Folders?
FreeFileSync mentioned below does not support Android.
There's an app called FolderSync that supports automatically syncing folders between Android phone and various cloud services, including Dropbox, Ubuntu One and Google Drive. (Disclaimer: Haven't tested it myself.)