Today I tried to rename a few hidden files with the following command in terminal (might be a hint for the solution):
for f in .*; do mv "$f" "_$f"; done
Now I wanted to start
vlc and all I got was the messagebox to
Most application are not startable, except the few that are loaded (with the dot mark in the dock under the icon).
Messages App Store Mail Calendar iTunes Terminal Notes Chrome Safari VLC Console Boot Camp Assistant
X11 QtCreator JDownloader Grapher Disk Utility
In addition, the attempt to run
XTerm resulted in
LSOpenURLsWithRole() failed for the application /Applications/Mail.app with error -10810.
My system is a MacBook running Yosemite 10.10.5.
My guess is that I for some reason renamed system files and I am afraid that after reboot the system won't start.