Install lua on mac I’m not sure that whether Lua is built on mac originally.
(Ok, tested on Mac OSX 10.9, there is Lua in it.)
So I installed Lua via Homebrew.
Install homebrew (optional)
ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)" Install Lua by homebrew
brew install lua Writing Lua You can use command: lua to interact with lua. (just like php -a or irb)
print("Hello World") function fact(n) if n == 0 then return 1 else return n * fact(n-1) end end print("enter a number:") num = io.
First of all, you need ‘brew’ (http://brew.sh/)
$ brew update $ brew install openssl $ brew link --force openssl $openssl version -a If it’s still the old version, you shoud:
$ sudo rm /usr/bin/openssl #remove the old binary $ sudo ln -s /usr/local/Cellar/openssl/1.0.1h/bin/openssl /usr/local/bin (1.0.1h -> the latest version) ref: http://apple.stackexchange.com/questions/126830/how-to-upgrade-openssl-in-os-x
最近在開 mac 的 iTerm.app 或者是內建的終端機都覺得卡卡的，
之前以為是 .bashrc 載入太多東西導致的，所以把一些掛載的 bin 目錄都註解掉，
但是還是沒解決，心想不對勁，就順手 google 了一下…
我執行了下列語法：
$ time /usr/libexec/path_helper PATH="/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/Users/ABC/android-sdks/platform-tools:/Users/ABC/android-sdks/tools:/Application/Vagrant/bin"; export PATH; real 0m0.043s user 0m0.001s sys 0m0.002s 接著我把 PATH 的內容寫進 .bash_profile，問題竟然就解決了…
速度飛快～～
後來看到一篇 .bash_profile vs.bashrc
雖然大家都知道 .bash_profile 是在登入時執行（即是輸入帳號密碼時），
而 .bashrc 是在系統內非登入狀態時開啟 prompt 時執行，
但是！！ Mac OSX 是個例外～是個例外～是個例外～…….=.=
Mac OS X — an exception
An exception to the terminal window guidelines is Mac OS X’s Terminal.app, which runs a login shell by default for each new terminal window, calling .
bash-it:
$git clone http://github.com/revans/bash-it.git ~/.bash_it $~/.bash_it/install.sh 他會幫你自動備份原來的 .bash_profile 為 .bash_profile.bak 所以別擔心
當他在問你要使用什麼 completion 或 script 之類的東西時，
選擇 ‘some’ 就可以自己選擇~
有許多的 theme 及 package , completion 等等可以用，很方便！
http://www.scholarslab.org/research-and-development/customizing-bash/
failed log:
$sudo brew update error: Your local changes to the following files would be overwritten by merge: Library/Aliases/gperftools Library/Aliases/hashdeep Library/Aliases/htop Library/Aliases/nodejs Library/Aliases/ocio Library/Aliases/oiio .... error: The following untracked working tree files would be overwritten by merge: Library/Aliases/gperftools Library/Aliases/hashdeep Library/Aliases/htop Library/Aliases/nodejs Library/Aliases/ocio Library/Aliases/oiio .... Aborting Error: Failure while executing: git pull -q origin refs/heads/master:refs/remotes/origin/master Solution:
$ cd /usr/local $ git fetch origin $ git reset --hard origin/master reference [read]
