Unable to install Homebrew

Unable to install Homebrew with this? ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)" What’s happened -e:70: warning: Insecure world writable dir /usr/local/bin in PATH, mode 040777 ==> This script will install: /usr/local/bin/brew /usr/local/Library/... /usr/…

Save Terminal from Process Completed in Mac OSX

What’s happening One day, when I opened up terminal as usual, it showed [Process completed] and just terminated. I could not type any thing, run any scripts and work on my project. Even worse, this made me unable to install programs into my computer because many installations need to…

Caffeine on Mac and Ubuntu

Caffeine has been a very useful app to instantly disable or enable the screensaver on mac. At least for me, I am using multiple computers in office and all of them except the one I am using will usually get idle. Getting into screensaver, however, is bad sometimes especially I…

Show completions and quick help tips in Xcode

I know it is troublesome, tedious, or just like hell. Apple has his own way to do a common task. Very often, we need to use the autocompletion in IDE to assist coding so we do not need to memorize the billions of function names. In Eclipse, everything is automatic.…

Change author info for old commits in Git

While using hit, it is really usual to have regrets on the commits done, especially the name used. In order to change those information in your repository, open terminal (or cmd in windows), go to the folder of your git repositoy, and run the following commands. Remember, replace “old_name”…

Ssh with password saved

Ssh is a very convenient way to remotely command or control other devices. We use ssh to push commits to git server, to access remote server, and even to manipulate the content of our iphones and ipads. However it’s usually distributing to type your long and elusive password every…

Mbox Mail for Mac is actually working on Lion

Once I thought the Mbox Mail for Mac doesn’t work in Lion. The reason is that when I use the same setting in Thurderbird, i can receive emails. This made me ensure the problem comes from the new Apple Mail 5. I dug into the protocol IMAP, learnt the…

Ruby on Mac OSX

**In Mac, Ruby is preinstalled. **You can open Terminal and input the followings to view the version of Ruby installed in your Mac `` [sourcecode language=”bash”] ruby -v [/sourcecode] Update Ruby. You might want to update your Ruby, however there is no installer for Ruby like Windows. Instead, we can…