I was wondering if there is a feature in linux like OSX "shake to locate cursor", which temporarily makes the user's mouse or trackpad cursor much larger when shaken back and forth, making it easier to locate if the user loses track of it.
In Linux Mint (18.1) you can go to Preferences > Mouse and, under Locate Pointer you can check a box that will tell the system to "Show position of pointer when the Control key is pressed".
I'm not sure if something similar is available on other distros.
Not quite what you asked for. Possibly useful?
gsettings set org.gnome.settings-daemon.peripherals.mouse locate-pointer true
On newer versions of Gnome seems to be on this path:
gsettings set org.gnome.desktop.interface locate-pointer true
Open dconf-editor (might be installed first) and go to one of the above paths:
Even with Ubuntu 16.04 and Nautilus 3.14.3 if I turn on this option I suffer this bug that don't let me copy filenames on Nautilus. Working now on Ubuntu 18.04, Gnome 3.28.4.