Where did you get the export
line from?
First things first: Look into your home folder (e.g. open a Finder window). Is there really a folder called opt
in there? If yes, something's really messed up. If no, your export
command was just wrong, since there's no opt
under $HOME
(which is your user's home folder). /opt
is typically at the root level of the file system.
Is there a folder called /opt
? Open a Terminal and enter ls /opt
. Does this directory exist? If yes, then you're probably using another package manager already and should not install Homebrew.
But even then, if /opt
really exists, there shouldn't be /opt/git/bin
.
If you really want to install a new version of Git, you can do that with:
- the git-osx-installer, which will install everything to
/usr/local/git/
- through Homebrew with
brew install git
, see below, which will install the git
command to /usr/local/bin/
To install Homebrew, you have to follow the instructions. There is no homebrew
command. You also don't have to change your PATH
.
You just have to copy and paste this to your Terminal:
/usr/bin/ruby -e "$(/usr/bin/curl -fsSL https://raw.github.com/mxcl/homebrew/master/Library/Contributions/install_homebrew.rb)"
This will install Homebrew, but make it available under the brew
command. So to install MySQL through Homebrew, you'd enter:
brew install mysql