I've found the "open" command in Mac OS X very handy in the command line. From "man open":
opencommand opens a file (or a directory or URL), just as if you had double-clicked the file's icon. If no application name is specified, the default application as determined via LaunchServices is used to open the specified files.
That is, if I want to open a PDF file with the default PDF viewer (happens to be Preview), I only need to do:
In Linux, however, to open a PDF file from the command line, I had to dig around to find the default PDF viewer is, for instance, "evince" (who'd have guessed??), and then
So, is there a simple equivalent of the 'open' command in the Linux command line?