(octave.info)Administrating Packages

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37.3 Administrating Packages
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On UNIX-like systems it is possible to make both per-user and
system-wide installations of a package.  If the user performing the
installation is ‘root’ the packages will be installed in a system-wide
directory that defaults to ‘OCTAVE_HOME/share/octave/packages/’.  If the
user is not ‘root’ the default installation directory is ‘~/octave/’.
Packages will be installed in a subdirectory of the installation
directory that will be named after the package.  It is possible to
change the installation directory by using the ‘pkg prefix’ command

     pkg prefix new_installation_directory

The current installation directory can be retrieved by typing

     current_installation_directory = pkg ("prefix")

   To function properly the package manager needs to keep some
information about the installed packages.  For per-user packages this
information is by default stored in the file ‘~/.octave_packages’ and
for system-wide installations it is stored in
‘OCTAVE_HOME/share/octave/octave_packages’.  The path to the per-user
file can be changed with the ‘pkg local_list’ command

     pkg local_list /path/to/new_file

For system-wide installations this can be changed in the same way using
the ‘pkg global_list’ command.  If these commands are called without a
new path, the current path will be returned.