傳奇(王菲)

yum 指令介紹

YUM - Yellowdog Updater Modified

YUM 官方網站：
http://linux.duke.edu/projects/yum/

yum 指令介紹
---------------------------------------------------------------
更新：yum update
安裝：yum install xxx
移除：yum remove xxx
清除已經安裝過的檔案（/var/cache/yum/）：yum clean all
搜尋：yum search xxx
列出所有檔案：yum list
查詢檔案訊息：yum info xxx

群組安裝功能
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yum grouplist
yum groupinstall "Web Server"

一些檔案
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rpm -qc yum
more /var/log/yum.log

利用 yum 指令更新 CentOS
---------------------------------------------------------------
yum check-update;yum -y update;yum clean all


yum check-update 是找 mirror 上有啥你可以更新的
yum -y update 是開始更新，並在出現尋問的時候直接回答 y
yum clean all 是清除你剛剛更新時下載的 package

安裝 CentOS 5.x

CentOS 官方網站：
http://centos.org/

台灣的幾個 Mirrors：
http://ftp.cse.yzu.edu.tw/pub/CentOS/
http://ftp.isu.edu.tw/pub/Linux/CentOS/
http://ftp.cs.pu.edu.tw/Linux/CentOS/

Cover Creation

Cover creation from Peter Belanger on Vimeo.

After working on the latest cover for Macworld Magazine I wanted to show what is involved in making a cover. I focused on the three main areas: the photography, photoshop and design. I chose a time lapse format to convey lots of information in a small amount of time. The only drawback of time lapse is that since half a day goes by in 30 seconds, the whole process seam so easy! Lots of details were left out of the design process (like the cover meetings and rounds of layout options). I began to photograph the design process after the layouts had already been narrowed down to just three cover designs.

On the technical side, for the time lapse video, I used the Canon 5D Mark II with a 24mm-70mm zoom. I chose the 5D because of its great image quality with high ISO's. Canon's sRAW1 gave me the flexibility of a RAW file with the file size of a jpeg. The actual Macworld cover was taken with a Phase One P65+ digital back attached to a 4x5 Sinar X camera with a 65mm lens.

Many thanks to Rob Schultz for allowing me to invade his office and literally shoot over his shoulder.

The music was used with permission by The Brokenmusicbox.

Project Natal

Video Games | Project Natal | E3 09: Project Natal Intro

XBox 360 | Playstation 3 | Nintendo Wii

搞砸了(黃鴻升)

Real-Real Time Computing is Here!

Fifteen (Taylor Swift)

Iguazu Falls

Between Argentina and Brazil you can see the most beautiful waterfalls of the world: Iguazu Falls.

Iguazu Falls(伊瓜蘇瀑布)

是世界上最寬的瀑布，它是來自巴西北部海拔1300公尺高的(SERRA DE MAR)馬樂山脈，這條叫依瓜蘇河長1320公里與阿根廷MISIONES省交接，走 到PUERTO IGUAZU時有個大斷層，而造成的自然瀑布景觀。她位於巴西和阿根廷交界的依瓜蘇河 的下游。流經巴西高原1320公里，河水流至伊瓜蘇瀑布處，河面已達4公里寬，河中間 有許多的小島，把河水分成許多支流。當從巴西高原的懸崖峭壁上突然墜落時，幾百條的支 流形成了壯觀的瀑布鍊，特别是在雨季，由於水量充足，幾百條瀑布鍊聯在一起，從天而降 ，雷鳴般水的冲擊聲浪可以傳到25公里以外的地方，巨浪掀起的水霧高達150米，水霧 在陽光的照射下，演變成七彩繽纷的，形狀各異的彩虹。伊瓜蘇瀑布的壯美景觀被譽為南美 洲的一大奇觀。

下一個天亮(郭靜)