Is package available on Ubuntu
123153
How to tell if a certain package exists in the apt repos?
5342
How can I check if a package is installed (no superuser privileges)?
81981
How to test if package is installed?
116
How do I find the package that provides a file?
105208
How can I check if a PPA has packages for another Ubuntu version?
86921
How do I check if a package is installed on my server?
49145
How to install .bundle packages in Ubuntu?
135452
How do you see what packages are available for update
91288
What software does the Ubuntu installer run on?
11671
"Unable to locate package" while trying to install packages with APT
113500
How can I find out which package installed a particular executable?
131858
How can I download THEN install packages?
158837
How can I install a package on MikTeX?
9723
How do I install software using the Ubuntu Software Center?
41054
How can I check the available version of a package in the repositories?
22506
Is there a way to find out whether an updated program/package lands in the official Ubuntu release repositories?
18097
How to install an application that requires gksu package on ubuntu 18.04?