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Personally I don't like synaptic, but if you open up the ubuntu software centre and then click on 'installed software', you will see a list of every application

Personally I don't like synaptic, but if you open up the ubuntu software centre and then click on 'installed software', you will see a list of every application that is installed on your system. Dependencies are automatically installed for all applications and are automatically removed when there are no packages left that need them, so don't worry about those! If you're more a command line guy, you can do the same using aptitude (aptitude remove package-name). Packages under aptitude will be listed as (a)utomatically installed if they were installed as a requirement for another package, so you shouldn't have to remove those by hand.

pbhjpbhj 16y ago
Also opening a console and using "popcon-largest-unused" should give you a list of the largest packages that you have not yet used the binaries from. Mine doesn't seem to update properly but this might be because I'm using Kubuntu. On my slimmed down system I use "sudo aptitude" type "/appname[Enter]", where appname is from the list popcon gives, then "n" to find the package and then try "_" (Shift+-) which purges the packages. If something will break you get a warning "e" shows what the suggested action is "," and "." scroll through options and "!" applies. When you're happy "g" will list the actions to be taken and "g" again will confirm. "q" at any time quits or moves to the previous menu or list. HTH.