Import photos into Linux is really an easy task, just need to install gthumb and you are ready
gthumb is a Linux tool or better said a Gnome tool, to view images, but one of its better uses is to import photos directly from the camera.
For Debian or Ubuntu
sudo apt-get install gthumb
For Fedora or Centos
sudo yum install gthumb
Once installed, open it from:
Applications->graphics->gthumb image viewer
You will get something like this:
then go to:
file->import photos and you will get this box.
then just select the pictures to import, if you want them deleted from the camera or not, and import them.