Ticket #147 (enhancement)

It would be really nice if notify-send would support reading the notification body from a file (and stdin). This would allow it to be more easily used in pipelines with other commands or to display existing files without reading those files onto the command-line before invoking notify-send.

I have attached a patch that introduces the -f, --file option which causes notify-send to read the contents of the given file (or stdin if "-" is given) and use the contents as the body of the notification. It will produce an error if both the -f option and a command-line body option are given.