tom@Tom-Ubunt2:~$ sudo dpkg -P linux-headers-4.4.0-{34,38,42,43}-generic
(Reading database ... 442191 files and directories currently installed.)
Removing linux-headers-4.4.0-34-generic (4.4.0-34.53) ...
dpkg: warning: while removing linux-headers-4.4.0-34-generic, directory '/lib/modules/4.4.0-34-generic' not empty so not removed
Removing linux-headers-4.4.0-38-generic (4.4.0-38.57) ...
dpkg: warning: while removing linux-headers-4.4.0-38-generic, directory '/lib/modules/4.4.0-38-generic' not empty so not removed
Removing linux-headers-4.4.0-42-generic (4.4.0-42.62) ...
dpkg: warning: while removing linux-headers-4.4.0-42-generic, directory '/lib/modules/4.4.0-42-generic' not empty so not removed
Removing linux-headers-4.4.0-43-generic (4.4.0-43.63) ...
dpkg: warning: while removing linux-headers-4.4.0-43-generic, directory '/lib/modules/4.4.0-43-generic' not empty so not removed
tom@Tom-Ubunt2:~$