Unable to install ES 5 (but can ES 2) on macOS Sierra

EDIT: This problem is now resolved. It was because of my .bash_profile.

Hi, I made an SO post here on my problem here: http://stackoverflow.com/questions/41149796/unable-to-install-elasticsearch-on-mac-sierra-10-12-2?noredirect=1#comment69515723_41149796

When attempting to start Elasticsearch 5.1.1 via

$ elasticsearch

I get the output:

Error: Could not find or load main class -Xms2g

I've looked into:

  1. I read it may be an error in how a class is called? But I'm not exposed to doing that. This thread doesn't help and isn't really my problem as I'm not installing a plugin.

  2. I installed via Homebrew. Here is some output from that:

    $ brew info elasticsearch
    elasticsearch: stable 5.1.1, HEAD
    Distributed search & analytics engine
    Conflicts with: elasticsearch@1.7, elasticsearch@2.4
    /usr/local/Cellar/elasticsearch/5.1.1 (98 files, 35.2M) *
      Built from source on 2016-12-14 at 09:23:56
    From: https://github.com/Homebrew/homebrew-core/blob/master/Formula/elasticsearch.rb
    ==> Requirements
    Required: java >= 1.8 ✔
    ==> Caveats
    Data:    /usr/local/var/elasticsearch/elasticsearch_GabbAHH/
    Logs:    /usr/local/var/log/elasticsearch/elasticsearch_GabbAHH.log
    Plugins: /usr/local/Cellar/elasticsearch/5.1.1/libexec/plugins/
    Config:  /usr/local/etc/elasticsearch/
    plugin script: /usr/local/Cellar/elasticsearch/5.1.1/libexec/bin/plugin
    To have launchd start elasticsearch now and restart at login:
      brew services start elasticsearch
    Or, if you don't want/need a background service you can just run:
    $ brew doctor
    Please note that these warnings are just used to help the Homebrew maintainers
    with debugging if you file an issue. If everything you use Homebrew for is
    working fine: please don't worry and just ignore them. Thanks!
    Warning: You have unlinked kegs in your Cellar
    Leaving kegs unlinked can lead to build-trouble and cause brews that depend on
    those kegs to fail to run properly once built. Run `brew link` on these:
  3. I also tried originally installing via manually extracting the .tar.gz package. I at first got some Java permission denied errors, but after running a chown to admin for myself I also got this same Error: Could not find or load main class type error.

  4. I just updated my Java JDK to the latest: 1.8.0_112 and set my JAVA_HOME variable to that directory accordingly.

  5. The most recent version of Elasticsearch 2 (2.4.3) works. Meanwhile, Elasticsearch v5.0.2 fails.

What can I do to have Elasticsearch properly installed on my Mac?

I just ran into this and this comment on the same question in SO was correct: http://stackoverflow.com/a/41562721/5050790

removing the grep color options solves this problem. Elasticsearch uses grep to construct to command line args for executing