How do I perform a silent installation?

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Most of the the installer variables can be supplied via the command line. You find find all the command line options by calling the installer with the "--help" option. The 4 Pathway Tools specific variables are:

• InstallDir (destination directory, defaults to $HOME/pathway-tools)
• PTOOLSLOCALPATH (data/configuration directory, defaults to $HOME as the prefix. So the final location of the directory is $HOME/ptools-local, but you only specify $HOME prefix). There are "underscores" between each word, but it doesn't appear to be showing up on the posting.
• InstallDesktopShortCuts (0 or 1, default=1 meaning, yes, install desktop shortcuts. For Unix and Mac, basically creates a symlink)
• UninstallPrevious (Uninstall older versions before installing new version, default=1)

For "silent installation", you also need to specify -mode unattended option.