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Rwx-calc is a small utility for calculating file and directory permissions as found on Unix/Linux like system, including the Jolla.

You can provide the absolute octal values, but also press on the individual permission to see the effect on the fly.

The help screen will provide some additional info on the permissions if needed.

Sources on github

Application versions: 
File harbour-rwx-calc-0.5-0.i486.rpm94.62 KB06/06/2017 - 21:00
File harbour-rwx-calc-0.5-0.armv7hl.rpm94.1 KB06/06/2017 - 21:00
File harbour-rwx-calc-0.5-1.armv7hl.rpm94.17 KB17/10/2017 - 21:09
File harbour-rwx-calc-0.5-1.i486.rpm94.66 KB17/10/2017 - 21:09
File harbour-rwx-calc-0.6-1.armv7hl.rpm121.88 KB05/02/2021 - 17:24
File harbour-rwx-calc-0.6-1.i486.rpm122.77 KB05/02/2021 - 17:24
File harbour-rwx-calc-0.7-1.aarch64.rpm123.08 KB24/04/2021 - 10:49
File harbour-rwx-calc-0.7-1.armv7hl.rpm122.48 KB24/04/2021 - 10:49
File harbour-rwx-calc-0.7-1.i486.rpm123.38 KB24/04/2021 - 10:49
File harbour-rwx-calc-0.8-1.aarch64.rpm122.74 KB14/11/2021 - 23:17
File harbour-rwx-calc-0.8-1.i486.rpm122.69 KB14/11/2021 - 23:17
File harbour-rwx-calc-0.8-1.armv7hl.rpm122.22 KB14/11/2021 - 23:17
  • 0-8.1 Changes for sailjail compliancy, no specific permissions needed
  • 0-7.1 Swedish translation added, aarch64 build
  • 0-6.1 Layout fix for SFOS 4.0
  • 0-5.1 Pulley menu also on second page plus small layout changes
  • 0-5.0 Added umask info page
  • 0-4.0 pushAttached page for octal representation view
  • 0-3.1 Fix for introduced bug
  • 0-3.0 Added landscape support
  • 0-2.0 harbourized version, small change in look
  • 0-1.6 Fixed: looks like upgrade12 caused some wordwrapping
  • 0-1.5 Version info added, minor button change
  • 0-1.4 Changed button appearance
  • 0-1.3 Adapted for other resolutions (tested on Nexus 7 v.2012)
  • 0-1.2 Minor cosmetic changes
  • 0-1.1 Initial release


Markkyboy's picture

Thanks for this app. As a total novice user of Linux anything, this has given me an understanding of how permissions are created, thanks again.

ade's picture

Agreed. Will address it in a next release.

Edit: new version uploaded

lukedirtwalker's picture


Lovely Idea!

Two minor remarks:

I would but some margin left and right in the help page.
And I would remove the pulley like separators from the about page as they confuse

Moth's picture

Now, originally an app is made to solve one problem only. Perfectly. On the other hand - app functionality shouldn't be limited by it's NAME. Should it? :-)

ade's picture

It would not fit in an app called rwx-calc :-) But an app to do some IP calculations would not be that hard.

Moth's picture

Good work, sailor. How about some more crazy calculations? Network (ipv4, ipv6), aspect ratio, gear ratio - all that stuff you'll never find in a regular calculator-app!? :-D