RPM or only .dmg in macox?

[iMacNoob]

Hi,

I'm a little confused, i'm following some tutorials online, and sometimes I have to type things like:

rpm -a | grep __________

and I get a -bash: rpm: command not found

So does Mac OS X have the rpm command or is that for some other linux version?

What is the difference between rpm and .dmg file?

 

[JeffTL]

RPM is the Red Hat Package Manager, used by Red Hat Linux and its derivatives to manage dependencies and such. I am not aware of a Mac OS X implementation.

DMG files are (often compressed) file systems within a file, which often contain OS X applications or installers. There are ports of Debian APT to OS X (Fink) and BSD ports (MacPorts), but RPM exists only on Linux and a couple other versions of Unix not including OS X to which it has been adapted.