Several times, I have seen in (quite) big projects, software installations made under


First I thought it was a fantasy, refusing FHS normalisation.


Because I have seen it in different companies on differents projects, I am begining to doubt it is a total invention of some kind.

Do you know if it is a legacy or some old practice on any system?

Where does it come from?

  • 1
    You are conflating the POSIX standard and the FHS. – JdeBP Mar 26 '18 at 8:01
  • You're right, I correct this. – Sandburg Mar 26 '18 at 8:02
  • That's funny, the publically available stuff I've seen like Google Chrome or VirtualBox tends to use /opt/. Can you say whether any of these were public apps, or is it all private stuff there's not much point / permission for you to name? – sourcejedi Mar 26 '18 at 15:52

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