The command to install a package via APT is as follows:
[root@localhost bin]# apt-get
install package
For example:
[root@localhost bin]# apt-get
install tuxpaint
Reading Package Lists... Done
Building Dependency Tree... Done
The following NEW packages will
be installed:
tuxpaint
0 upgraded, 1 newly installed, 0
removed and 166 not upgraded.
Need to get 0B/2922kB of archives.
After unpacking 5752kB of
additional disk space will be used.
Committing changes...
Preparing...
########################################### [100%]
1:tuxpaint
########################################### [100%]
Done.