Minecraft Forums

I am currently attempting to download Minecraft onto my laptop I just got but of course with my luck it is not working. I obtained the file from Minecraft.net after creating an account and the files I have downloaded were the ones for Mac OS X, also the Minecraft for Linux. I first tried the Mac one with the file named as minecraft.dmg while my friend told me to download the one under linux with the file named minecraft.jar. Although when I downloaded them both, neither worked like they were supposed at some point. With the .dmg file it would begin to install but come up with a fatal error telling me to fix it and restart. With the .jar file it was downloaded and came up as a .zip file. Now either I do not know how to unzip it, forgot how to, or cannot find the solution and of course I searched under Minecraft.net the problems I have been getting but was not capable of finding the resolution to my problems. So I would like some help in finding out the solution to my problems. Can you guys help me decrypt this note I got from the installation text:
(Start)
Bootstrap (v5)
Current time is May 15, 2014 7:09:53 PM
System.getProperty('os.name') == 'Mac OS X'
System.getProperty('os.version') == '10.8.5'
System.getProperty('os.arch') == 'x86_64'
System.getProperty('java.version') == '1.6.0_65'
System.getProperty('java.vendor') == 'Apple Inc.'
System.getProperty('sun.arch.data.model') == '64'

Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma
Got reply in: 1385ms
Exception: java.io.FileNotFoundException: /Users/19505/Library/Application Support/minecraft/launcher.pack.lzma.new (Permission denied)
Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 2/10)
Got reply in: 197ms
Exception: java.io.FileNotFoundException: /Users/19505/Library/Application Support/minecraft/launcher.pack.lzma.new (Permission denied)
Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 3/10)
Got reply in: 233ms
Exception: java.io.FileNotFoundException: /Users/19505/Library/Application Support/minecraft/launcher.pack.lzma.new (Permission denied)
Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 4/10)
Got reply in: 215ms
Exception: java.io.FileNotFoundException: /Users/19505/Library/Application Support/minecraft/launcher.pack.lzma.new (Permission denied)
Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 5/10)
Got reply in: 207ms
Exception: java.io.FileNotFoundException: /Users/19505/Library/Application Support/minecraft/launcher.pack.lzma.new (Permission denied)
Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 6/10)
Got reply in: 220ms
Exception: java.io.FileNotFoundException: /Users/19505/Library/Application Support/minecraft/launcher.pack.lzma.new (Permission denied)
Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 7/10)
Got reply in: 216ms
Exception: java.io.FileNotFoundException: /Users/19505/Library/Application Support/minecraft/launcher.pack.lzma.new (Permission denied)
Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 8/10)
Got reply in: 216ms
Exception: java.io.FileNotFoundException: /Users/19505/Library/Application Support/minecraft/launcher.pack.lzma.new (Permission denied)
Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 9/10)
Got reply in: 208ms
Exception: java.io.FileNotFoundException: /Users/19505/Library/Application Support/minecraft/launcher.pack.lzma.new (Permission denied)
Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 10/10)
Got reply in: 210ms
Exception: java.io.FileNotFoundException: /Users/19505/Library/Application Support/minecraft/launcher.pack.lzma.new (Permission denied)
Unable to download remote file. Check your internet connection/proxy settings.
FATAL ERROR: net.minecraft.bootstrap.FatalBootstrapError: Unable to download while being forced
at net.minecraft.bootstrap.Bootstrap.execute(Bootstrap.java:95)
at net.minecraft.bootstrap.Bootstrap.main(Bootstrap.java:381)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at apple.launcher.LaunchRunner.run(LaunchRunner.java:116)
at apple.launcher.LaunchRunner.callMain(LaunchRunner.java:51)
at apple.launcher.JavaApplicationLauncher.launch(JavaApplicationLauncher.java:52)


Please fix the error and restart.
(End)

Or explain to me how to unzip the .jar file that change to a .zip file.

This is what I have attempted:
Downloading and re-downloading minecraft files
Turn on and off wireless connection
Fix the privacy settings in the system preferences
Search for resolutions under YouTube and Minecraft.net and forums
Find the proxy setting for minecraft.dmg file
Also moving the Minecraft file it gave me to a different location

Please and Thank you,
Dmitry