$ cpan

cpan shell -- CPAN exploration and modules installation (v1.960001)
Enter 'h' for help.

cpan[1]> install Tk
Going to read '/home/pberghold/.cpan/Metadata'
  Database was generated on Wed, 16 Jan 2013 02:41:03 GMT
Fetching with LWP:
http://cpan.belfry.net/authors/01mailrc.txt.gz
Going to read '/home/pberghold/.cpan/sources/authors/01mailrc.txt.gz'
............................................................................DONE
Fetching with LWP:
http://cpan.belfry.net/modules/02packages.details.txt.gz
Going to read '/home/pberghold/.cpan/sources/modules/02packages.details.txt.gz'
  Database was generated on Tue, 29 Jan 2013 01:29:02 GMT
..............
 
..............................................................DONE
Fetching with LWP:
http://cpan.belfry.net/modules/03modlist.data.gz
Going to read '/home/pberghold/.cpan/sources/modules/03modlist.data.gz'
............................................................................DONE
Going to write /home/pberghold/.cpan/Metadata
Tk is up to date (804.030).

cpan[2]>