$ sudo apt-get install fldigi
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Suggested packages:
  libterm-readline-gnu-perl libterm-readline-perl-perl
The following NEW packages will be installed:
  fldigi
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 0B/1,394kB of archives.
After this operation, 3,584kB of additional disk space will be used.
Selecting previously deselected package fldigi.
(Reading database ... 457746 files and directories currently installed.)
Unpacking fldigi (from .../fldigi_3.21.4-1~kamal~maverick_amd64.deb) ...
Processing triggers for menu ...
Processing triggers for python-gmenu ...
Rebuilding /usr/share/applications/desktop.en_US.utf8.cache...
Processing triggers for desktop-file-utils ...
Processing triggers for man-db ...
Processing triggers for python-support ...
Setting up fldigi (3.21.4-1~kamal~maverick) ...
Processing triggers for menu ...