Extracting .gma files with a Mac computer

[EWAR Gaming]

Hello, all.

I apologize beforehand for any excess questions. I am not the best with computers, so I need to ask more to make sure I understand correctly.

I previously ran a Garry's Mod server through NFO Servers on my PC. I am on my Mac away from home now, however, and have been unable to figure out how to extract .gma files in order to put them on my server. Has anyone figured out an easy way to do this? Any help is appreciated!

[kraze]

I'd attempt to give this guide a go to see if it works.
https://facepunch.com/showthread.php?t=1242185

[EWAR Gaming]

So, an update:

I saw that post (and many, many others). That post combined with another on a Steam page (https://steamcommunity.com/sharedfiles/ ... =431638110) led me to both find my addons folder ( I hadn't even found my Library before ; really starting to regret taking my Mac with me for work ) and the gmad_osx program that came with my Garry's Mod download.

NOW, I opened that up with Terminal and followed the path to any easy addon to see if it would work: I won't put the full path, but I did #1 this command and got #2 result:

#1 ./gmad_osx -~/Library/Application\ Support/Steam/steamapps/common/GarrysMod/addons/ttt_minecraft_b5_15_9321088.gma -out -~/Desktop/Extractions

#2 Garry's Mod Addon Creator 1.1
Opening "-~/library/application support/steam/steamapps/common/garrysmod/addons/ttt_minecraft_b5_15_9321088.gma"
There was a problem opening the file

That is where I'm stuck as of now. Not really sure why it won't open the file. I've tried it with 3 or 4 addons, as well. No dice.

[kraze]

Just as a test. If you don't specify an -out directory does it work or throw another error?