How can I check if a package is installed and install it if not?
To check if packagename was installed, type: dpkg -s <packagename> You can also use dpkg-query that has a neater output for your purpose, and accepts wild cards, too. dpkg-query -l <packagename> To find what package owns the command, try: dpkg -S `which <command>` For further details, see article Find out if package is installed in … Read more