raven@raven-pc:~$ sudo apt-get install linux-headers-$(raven -r)
No command 'raven' found, did you mean:
 Command 'aven' from package 'survex-aven' (universe)
raven: command not found
Reading package lists... Done
Building dependency tree
Reading state information... Done
Virtual packages like 'linux-headers' can't be removed
The following package was automatically installed and is no longer required:
  linux-headers-3.5.0-17
Use 'apt-get autoremove' to remove it.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.