frankel

xrandr --newmode "1280x1024_60.00"  109.00  1280 1368 1496 1712  1024 1027 1034 1063 -hsync +vsync
xrandr --addmode VGA-0 "1280x1024_60.00"
xrandr --output VGA-0 --mode 1280x1024_60.00
xrandr --output VGA-0 --left-of DVI-0

frankel

gem install nokogiri -- --with-xml2-include=/Users/frankelma/github/homebrew/Cellar/libxml2/2.7.8/include/libxml2 --with-xml2-lib=/Users/frankelma/github/homebrew/Cellar/libxml2/2.7.8/lib --with-xslt-dir=/Users/frankelma/github/homebrew/Cellar/libxslt/1.1.26


gem install nokogiri -- --with-xml2-include=/Users/frankelma/github/homebrew/Cellar/libxml2/2.7.8/include/libxml2 
                        --with-xml2-lib=/Users/frankelma/github/homebrew/Cellar/libxml2/2.7.8/lib
                        --with-xslt-dir=/Users/frankelma/github/homebrew/Cellar/libxslt/1.1.26

frankel

rails g scaffold product name price:decimal --skip-stylesheets

rails g bootstrap:themed products -f

frankel

export PATH="/Users/frankelma/github/homebrew/bin:$PATH:/Users/frankelma/github/homebrew/Cellar/gems/bin"

export CC=/usr/bin/gcc-4.2

if [[ -s /Users/frankelma/.rvm/scripts/rvm ]] ; then source /Users/frankelma/.rvm/scripts/rvm ; fi
	
export GEM_HOME="/Users/frankelma/github/homebrew/Cellar/gems"
export GEM_PATH="/Users/frankelma/github/homebrew/Cellar/gems/gems"

alias ll='ls -al'

frankel

select field, count(*) from table group by field having count(*) >1

frankel

http://blog.crowdint.com/2011/10/05/using-rbenv-for-managing-your-rubies.html 

CONFIGURE_OPTS="--with-readline-dir=/usr/include/readline" rbenv install 1.9.3-preview1

frankel

correct: RAILS_ENV=production rails console

not : rails console RAILS_ENV=production

frankel

ps aux | sort -nk +4 | tail

frankel

Ruby 1.9 偏好使用新的 lambda 字面语法。

# 差
lambda = lambda { |a, b​​| a + b }
lambda.call(1, 2)

# 好
lambda = ->(a, b) { a + b }
lambda.(1, 2)

frankel

gem install mysql2 -- --with-mysql-config=/usr/local/mysql-5.6.16-osx10.7-x86_64/bin/mysql_config