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Helpful answers
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Nov 25, 2015 12:40 PM in response to chevydogincodeby MrHoffman,More likely that there are just the usual differences between Unix implementations and versions, rather than removing a specific switch.
There are several different add-on package installers that can be used with OS X, with homebrew being the local choice.
Yes, homebrew does have a recipe for netcat available.
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Nov 25, 2015 3:22 PM in response to chevydogincodeby BobHarris,Besides the homebrew open source package installer, there is fink and MacPorts, however, homebrew is the current flavor that seems to be referenced more than the others.
There is also GNU netcat (gnetcat), which does have the -e option. You can get that from the above package installers, or you can download the sources and build it yourself
<http://netcat.sourceforge.net/>
In fact, there is a very good chance that whatever you are reading is based on GNU netcat, as that is more likely to be installed on a Linux system.