In eclipse, is there a way, to reveal the currently selected file in the filesystem. I currently need it to open in explorer, but it could also be in finder or nautilus.
Adding Show in Nautilus using External Tools is pretty easy too, very similar to the process for Windows in VonC's answer. Simply create the following shell script, chmod +x
it and add it to the PATH. Then use it in Eclipse's External Tools Configuration window, as shown in the screenshot below.
~/bin$ cat run-nautilus.sh
#!/bin/bash
nautilus `dirname $1`