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==Linux version==
===Linux Installation Notes===
For version 1.1.0 the locations of the files used by oscar have changed to match the recommendations of the freedesktop.org. To accommodate this, it is recommended that any older versions of OSCAR, including -beta and -test versions, should be removed – more exactly, purged, - before installation of version 1.1.0.
For '''Debian-based systems''', this is done in two steps:<br />
<prompt>$ dpkg -l | grep -i oscar<br />
will display long lines starting with two letters, followed by the package-name and then the version and more stuff. The next step is to purge each package listed above, using:<br />
<prompt>$ sudo dpkg --purge <package-name><br />
For '''RPM-based systems''' (from v1.1.1), the procedure has two steps:<br />
<prompt>$ dnf list installed “oscar*”<br />
Don’t forget the quotes around oscar*. The first column has the package-name followed by the architecture. Then remove the package with:<br />
<prompt>$ sudo dnf remove <package-name><br />
Once the old versions are removed, installation is straight-forward:
For '''Debian-based systems''':<br />
<prompt>:$ sudo dpkg -i <deb file><br />
assuming you are in the folder where you downloaded it.
For '''RPM-based systems''' (from v1.1.1), you may need to pre-install some libraries (the example below is for Fedora 31):<br />
<prompt>$ sudo dnf install mesa-libGLU-9.0.1-1.fc31<br />
<prompt>$ sudo dnf install qt5-qtserialport-5.12.5-1.fc31<br />
before you install OSCAR:<br />
<prompt>$ sudo dnf localinstall <rpm files><br />
Careful : you have to specify a path for localinstall. If the file is in the current
directory, put ./ before it.
===Folder structure===
The folder structure is supposed to suit the FHS (Filesystem Hierarchy Standard)
* /usr/share/icons (icon files in some subdirectory)
* /usr/share/applications (.desktop file is the shortcut).
===Ubuntu and Debian===
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