新增：
$ defaults write com.apple.mail UserHeaders "{'Bcc'='myemail@domain.local’;}”
顯示：
$ defaults read com.apple.mail UserHeaders
{
Bcc = "myemail@domain.local";
}
刪除：
$ defaults delete com.apple.mail UserHeaders
由於其他人常用 Outlook 收信，會發現他們的 outlook 無法判斷編碼（但 Webmail 顯示正常），解法就是在信件內容加上 UTF-8 特殊符號即可，例如擺在簽名檔等：
✉ : email@local.com
$ ffmpeg -i file1.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts '/tmp/tmp1'
$ ffmpeg -i file2.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts '/tmp/tmp2'
$ ffmpeg -i "concat:/tmp/tmp1|/tmp/tmp2" -c copy -bsf:a aac_adtstoasc output.mp4
$ python ffmpeg-concat-mp4-files.py --files file1.mp4 file2.mp4 --output out.mp4
$ python ffmpeg-concat-mp4-files.py --m3u /tmp/m3u.list --output out.mp4
$ cd /tmp
$ git clone https://github.com/lonelyeagle/youku_enable_fx.git
$ cd youku_enable_fx
$ zip -r youku_enable_fx.xpi install.rdf chrome.manifest defaults/* chrome/*
adding: install.rdf (deflated 51%)
adding: chrome.manifest (deflated 52%)
adding: defaults/preferences/ (stored 0%)
adding: defaults/preferences/prefs.js (deflated 50%)
adding: chrome/content/ (stored 0%)
adding: chrome/content/ff-overlay.js (deflated 64%)
adding: chrome/content/ff-overlay.xul (deflated 46%)
adding: chrome/locale/ (stored 0%)
adding: chrome/locale/en-US/ (stored 0%)
adding: chrome/locale/en-US/overlay.dtd (deflated 62%)
adding: chrome/locale/en-US/overlay.properties (deflated 25%)
adding: chrome/skin/ (stored 0%)
adding: chrome/skin/overlay.css (deflated 57%)
adding: chrome/skin/unblockPlayer.png (deflated 0%)
$ python import.py -
{"field":"There are various names for the island of Taiwan in use today, derived from explorers or rulers by each particular period. The former name Formosa (福爾摩沙) dates from 1544, when Portuguese sailors sighted the main island of Taiwan and named it Ilha Formosa, which means \"Beautiful Island\".[21] In the early 17th century, the Dutch East India Company established a commercial post at Fort Zeelandia (modern Anping, Tainan) on a coastal islet called \"Tayouan\" in the local Siraya language; the name was later extended to the whole island as \"Taiwan\".[22] Historically, \"Taiwan\" has also been written as 大灣, 臺員, 大員, 臺圓, 大圓 and 臺窩灣."}
{"field":"The official name of the state is the \"Republic of China\"; it has also been known under various names throughout its existence. Shortly after the ROC's establishment in 1912, while it was still located on the Asian mainland, the government used the abbreviation \"China\" (\"Zhongguó\") to refer to itself. During the 1950s and 1960s, it was common to refer to it as \"Nationalist China\" (or \"Free China\") to differentiate it from \"Communist China\" (or \"Red China\").[23] It was present at the UN under the name \"China\" until 1971, when it lost its seat to the People's Republic of China. Since then, the name \"China\" has been commonly used internationally to refer only to the People's Republic of China.[24] Over subsequent decades, the Republic of China has become commonly known as \"Taiwan\", after the island that composes most of its territory. The Republic of China participates in most international forums and organizations under the name \"Chinese Taipei\" due to diplomatic pressure from the PRC. For instance, it is the name under which it has competed at the Olympic Games since 1984, and its name as an observer at the World Health Organization.[25]"}
Import: 2
[ObjectId('52e265a69c3fe514be2534fe'), ObjectId('52e265a69c3fe514be2534ff')]
$ python map-reduce-word-count.py --show-result --delete-result
Collection(Database(MongoClient('localhost', 27017), u'db'), u'tmp_2014-01-24_131025')
{u'_id': u'1544', u'value': {u'count': 1.0}}
{u'_id': u'17th', u'value': {u'count': 1.0}}
{u'_id': u'1912', u'value': {u'count': 1.0}}
{u'_id': u'1950s', u'value': {u'count': 1.0}}
{u'_id': u'1960s', u'value': {u'count': 1.0}}
{u'_id': u'1971', u'value': {u'count': 1.0}}
{u'_id': u'1984', u'value': {u'count': 1.0}}
{u'_id': u'21', u'value': {u'count': 1.0}}
{u'_id': u'22', u'value': {u'count': 1.0}}
{u'_id': u'23', u'value': {u'count': 1.0}}
{u'_id': u'24', u'value': {u'count': 1.0}}
{u'_id': u'25', u'value': {u'count': 1.0}}
{u'_id': u';', u'value': {u'count': 1.0}}
{u'_id': u'Anping', u'value': {u'count': 1.0}}
{u'_id': u'Asian', u'value': {u'count': 1.0}}
{u'_id': u'Beautiful', u'value': {u'count': 1.0}}
{u'_id': u'China', u'value': {u'count': 12.0}}
{u'_id': u'Chinese', u'value': {u'count': 1.0}}
{u'_id': u'Communist', u'value': {u'count': 1.0}}
{u'_id': u'Company', u'value': {u'count': 1.0}}
{u'_id': u'During', u'value': {u'count': 1.0}}
{u'_id': u'Dutch', u'value': {u'count': 1.0}}
{u'_id': u'East', u'value': {u'count': 1.0}}
{u'_id': u'For', u'value': {u'count': 1.0}}
…
mapper = Code (
"""
function() {
var func = {
'author':function() {
return 'changyy';
}
};
(“”+this.field).split(/[\s\[\],\(\)"\.]+/).forEach(function(v){
//emit(func.author(), 1 );
if(v && v.length )
emit(v, {'count':1});
} );
}
"""
)
reducer = Code(
"""
function(key, value) {
var total = 0;
for(var i = 0 ; i < value.length ; ++i ) {
total += value[i].count;
}
return {'count':total};
}
"""
)