举例一：

[reistlin@reistlin.com ~]$ cat /proc/scsi/scsi | grep Model
Vendor: ATA Model: OCZ-VERTEX2 3.5 Rev: 1.27
Vendor: ATA Model: OCZ-VERTEX2 3.5 Rev: 1.27

http://www.linuxsa.org.au/tips/time.html

Linux Tips Linux, Clocks, and Time

Introduction

This document explains how to set your computer’s clock from Linux, how to set your timezone, and other stuff related to Linux and how it does its time-keeping.

Save it as memcache.php on the web root and use
http://domain/memcache.php?op=1 to view

Download here # It works!

http://blog.chinaunix.net/space.php?uid=20488859&do=blog&id=1941203

由于find具有强大的功能，所以它的选项也很多，其中大部分选项都值得我们花时间来了解一下。即使系统中含有网络文件系统( NFS)，find命令在该文件系统中同样有效，只你具有相应的权限。

http://www.360doc.com/content/10/0917/21/12727_54462553.shtml
http://www.colourlovers.com/business/blog/2010/09/15/the-most-powerful-colors-in-the-world

前不久，ColourLovers.com公布了一项调查结果。

http://jsxgraph.uni-bayreuth.de/wp/

Interactive Geometry, plotting, visualization

JSXGraph is a cross-browser library for interactive geometry, function plotting, charting, and data visualization in a web browser. It is implemented completely in JavaScript, does not rely on any other library, and uses SVG, VML, or canvas. JSXGraph is easy to embed and has a small footprint: less than 100 KByte if embedded in a web page. No plug-ins are required! Special care has been taken to optimize the performance.

Starting with version 0.80, JSXGraph supports multitouch devices like the Apple iPad. Since version 0.82 the canvas element is supported, too. That means, JSXGraph also runs on Android devices.

JSXGraph is developed at the Lehrstuhl für Mathematik und ihre Didaktik, University of Bayreuth, Germany.

text-shadow: 0 1px 2px #B2A98F, 0 6px 10px rgba(0, 0, 0, 0.15), 0 2px 2px rgba(0, 0, 0, 0.1), 0 24px 20px rgba(0, 0, 0, 0.1)

So neat!

RAID stands for Redundant Array of Independent Disks (some are taught “Inexpensive” to indicate that they are “normal” disks; historically there were internally redundant disks which were very expensive; since those are no longer available the acronym has adapted).

linux下的top命令参数说明 （virt,res,shr,data 的意义）

%mem 内存使用率
virt 是虚拟内存
res是常驻内存
shr是共享内存

netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}'
TIME_WAIT 1748
CLOSE_WAIT 9
FIN_WAIT1 11
FIN_WAIT2 159
ESTABLISHED 844
SYN_RECV 17
CLOSING 1
LAST_ACK 37