Mac PROBLEMS

15 September 2013

Mac command line

mdfind

mdfind can find something in Mac

cal

cal launch a calendar

start/stop apache:

$ sudo apachectl start
$ sudo apachectl stop

remove dir:

rm -rf dir

brew install

Install homebrew

Mac install homebrew，we can use git as from: http://blog.jjgod.org/2009/12/21/homebrew-package-management/

$ sudo chown -R `wanggengzhou` /usr/local
$ cd /usr/local
$ git init
$ git remote add origin git://github.com/mxcl/homebrew.git
$ git pull origin master

Testing: brew search

install ruby:

$ brew install ruby

Configure the path: PATH=$(brew –prefix ruby)/bin:$PATH

$ vim ~/.bash_profile

input:

export PATH=$(brew --prefix ruby)/bin:$PATH

install jekyll：

$ gem update --system
$ gem install jekyll

Mac vim

vimrc configure

$ sudo vim /usr/share/vim/vimrc

input:

set ai                  " auto indenting
set history=100         " keep 100 lines of history
set ruler               " show the cursor position
syntax on               " syntax highlighting
set hlsearch            " highlight the last searched term
filetype plugin on      " use the file type plugins

" When editing a file, always jump to the last cursor position
autocmd BufReadPost *
\ if ! exists("g:leave_my_cursor_position_alone") |
\ if line("'\"") > 0 && line ("'\"") < = line("$") |
\ exe "normal g'\"" |
\ endif |
\ endif

File System

The path of QQ information:

~/Library/Containers/com.tencent.qq/Data/Library/Application Support/QQ

Questions：

can’t open file for writing

Maybe the file owner becomes root

Permission denied

cannot open .git/FETCH_HEAD: Permission denied

$ sudo chown -R .git/

Mac ssh need not to be root accout

Lauchpad icon information is in

~/Library/Application\ Support/Dock/*.db

science 25

Mac 4