Version 3.8 of Octave has an unofficial and experimental GUI similar to Matlab. But on my Linux Mint 17 (Quiana), based on Ubuntu 14.04 (Trusty Tahir), I got a warning:
QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No space left on device. It does not appear in the console mode. I send a bug report and got a prompt fix. Thanks to Mike Miller of the Octave team for assistance and the fix. It was a system configuration issue and not really the fault of Octaves’s developers.
Find the fix below. It should work in Ubuntu 14.04 and in other distributions based on Ubuntu, too. [...]