Install and Uninstall Software on a Mac

http://www.laptopmag.com/articles/install-unininstall-mac-software

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lsbom   - List the contents of an installer's bom (bill of materials) file. This can be used to find out what files an installer will add/replace in your system before running it. It can also be used to find out what files a past install messed with.
Examples:
lsbom /Volumes/Developer\ Tools/Packages/DevTools.pkg/Contents/Resources/DevTools.bom >contents.txt
List the files that will be installed by the "DevTools" package, saving the list in a file named contents.txt.
lsbom /Library/Receipts/Essentials.pkg/Contents/Resources/Essentials.bom | more
List the files that were installed by the "Essentials" package (and pipe it through more to prevent overload).
 (http://www.westwind.com/reference/OS-X/commandline/admin.html#ifconfig)
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