apt-get install s3cmd
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 libltdl3-dev : Depends: libltdl3 (= 1.5.26-1ubuntu1) but it is not installable
                Recommends: libtool but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).