David Lin

temp monitoring

noreply@blogger.com (David Lin) — Mon, 19 Mar 2012 03:03:00 +0000

# while true; do sensors|grep 'CPU T'|awk -F" " '{print $1 " " $3}';sleep 300;done

$ while true; do hddtemp /dev/sdb; sleep 300; done

# while true; do sensors|grep 'Sys'|awk -F" " '{print $1 " " $3}';sleep 300;done

convert mkv to avi

noreply@blogger.com (David Lin) — Wed, 18 Jan 2012 04:12:00 +0000

for i in `ls *.mkv`; do ffmpeg -i $i -sameq -acodec copy -g 1 $i.avi; done

what i learnt from my acl repair surgery

noreply@blogger.com (David Lin) — Mon, 01 Aug 2011 13:19:00 +0000

1. strengthen your quads way before the surgery, cos you'll lose muscles.

2. anesthesia is a must for the first 2 days, or the pain and spasm will kill you.

3. anesthesia is a bad mofo, keep you dumb for 10 days, dont do drugs.

convert big5 text into utf8

noreply@blogger.com (David Lin) — Mon, 09 May 2011 13:25:00 +0000

iconv -f big5 -t utf8 src_filename -o output_filename

use cron to control deluge download

noreply@blogger.com (David Lin) — Tue, 05 Apr 2011 09:54:00 +0000

55 17 * * * export DISPLAY=:0 && /usr/bin/deluge
56 17 * * * pkill -f deluge

Regards,
David Lin

sed to find a block of text

noreply@blogger.com (David Lin) — Wed, 16 Mar 2011 06:26:00 +0000

How do I address all the lines between RE1 and RE2, excluding
the lines themselves?

Normally, to address the lines between two regular expressions, RE1
and RE2, one would do this: '/RE1/,/RE2/{commands;}'. Excluding
those lines takes an extra step. To put 2 arrows before each line
between RE1 and RE2, except for those lines:
sed '1,/RE1/!{ /RE2/,/RE1/!s/^/>>/; }' input.fil
The preceding script, though short, may be difficult to follow. It
also requires that /RE1/ cannot occur on the first line of the
input file. The following script, though it's not a one-liner, is
easier to read and it permits /RE1/ to appear on the first line:

/RE1/,/RE2/{
/RE1/b
/RE2/b
s/^/>>/
}

A solution to the problem :

sed -n -e '/A/,/B/{
/A/b
/B/b
p
}' File > Target_file

The same thing with awk

awk '/A/,/B/{ if (/A/ || /B/) next; print }' F > G

ubuntu lamp 開發環境

noreply@blogger.com (David Lin) — Wed, 01 Dec 2010 07:10:00 +0000

sudo apt-get install lamp-server^

就只有一行 ^別忘了

付出與收穫會成正比

noreply@blogger.com (David Lin) — Tue, 30 Nov 2010 13:16:00 +0000

今天有個朋友 Travis Wu 跟偶分享了一個概念

當每天都多作一點付出110% 一年下來等於 1.1^365 = 1.28330558 × 10^15

當每天都少作一點付出90% 一年下來等於 0.9^365 = 1.98845582 × 10^-17

十萬八千里

感謝Travis與我分享

policy routing for multi homed linux box

noreply@blogger.com (David Lin) — Mon, 29 Nov 2010 02:55:00 +0000

default gw = 192.168.0.1

eth0

192.168.0.2/24

eth1

10.0.0.2/24

i want traffic coming from eth1 leaving from eth1

vi /etc/iproute2/rt_tables

insert

200 number2

/etc/sysconfig/network-scripts/route-eth1

insert

default table number2 via 10.0.0.1(gw ip)

vi /etc/sysconfig/network-scripts/rule-eth1

from 10.0.0.2 table number2

restart it

SCIM中文輸入在chrome無法focus的問題

noreply@blogger.com (David Lin) — Wed, 10 Nov 2010 01:57:00 +0000

sudo vi /etc/X11/xinit/xinput.d/scim

and change these two variables:

GTK_IM_MODULE="SCIM"

QT_IM_MODULE="SCIM"

威達亂搞浪費我的時間

noreply@blogger.com (David Lin) — Sun, 07 Nov 2010 05:45:00 +0000

話說某日想要申裝4G來看看到底是有多快

說什麼雲端科技我個人是認為是屁但是眼見為憑看看再說

心血來潮打給威達結果發現一件很機車的事情

是怎樣?? 威達的0800電話如果捨不的付費的話就不要刊登讓人打打去都是通話中令人很不舒服

打了電話約好隔日9-12點的時候來測收訊及施工

隔日到了11:30都沒有一通電話到了11:45分的時候我只好主動打去聯絡威達客服

客服很客氣的說"馬上請工程師跟我聯絡"

又過了30分鐘 12:15分已經超過施工時間威達客服仍然沒有打來我只好又回撥

第二次打去已經有點火所以口氣比較不好

所以一分鐘內馬上回電給我了也告知我威達工程師已經測試訊號我的住家沒有辦法使用4G

他媽的... 我苦等了一個早上沒來施工撥了很多通去威達客服才得知我家沒收訊也不會主動通知浪費的我半天時間

SMF censored text for post only

noreply@blogger.com (David Lin) — Wed, 03 Nov 2010 08:23:00 +0000

keyword: censorText

lookup the keyword from ./Source/{Display,BoardIndex,MessageIndex}.php and comment out the subject part.

to avoid html embedded posts:
in Source/Load.php

1669 if (strrchr($text, html)){
1670 return $text;
1671 }
1672 else {
1673 $text = preg_replace($censor_vulgar, $censor_proper, $text);
1674 return $text;
1675 }

Slow SSH Authentication

noreply@blogger.com (David Lin) — Tue, 02 Nov 2010 01:50:00 +0000

using root, change sshd_config as following:

GSSAPIAuthentication no

UseDns no

非常不環保的馬崗豆花

noreply@blogger.com (David Lin) — Wed, 20 Oct 2010 07:34:00 +0000

話說天氣炎熱吃個豆花

發現鼎鼎大名的馬崗豆花在店內用還用外帶杯

非常不環保反推薦!

uniqlo 之剛出院的偽畫家style

noreply@blogger.com (David Lin) — Wed, 20 Oct 2010 06:13:00 +0000

某天在捷運看到這個style

model一個病奄奄沒朝氣又帶著過時的畫家帽子

肯定是剛出院趕著去畫圖

最好是有人會這樣穿啦

搞不懂uniqlo在熱什麼明明就是一堆支那國的東西

台灣人都暈了∼

Contessa 嚴重氧化

noreply@blogger.com (David Lin) — Wed, 20 Oct 2010 04:57:00 +0000

乍看之下還頗漂亮

黑黑的地方已經氧化了

來個close up

這個地方整個霧化很糟糕

一兩年前買的contessa人體工學椅不便宜當初想說每天在電腦桌前這麼久買個好椅子也是一個好投資

但是.....

Contessa的腳氧化的程度實在讓整座的質感降低很多 NT4xxxx的椅子我期待更好的品質

下次買Herman Miller好了

centos bootable usb

noreply@blogger.com (David Lin) — Mon, 18 Oct 2010 09:05:00 +0000

Using fdisk, partition your key: one partition, VFAT (type b, and toggle

the bootable flag), about 9M or 10M, and a second partition big enough to

hold a DVD. That should be type 83 (Linux native).

mkfs -t vfat <the DOS partition)

mkfs <the Linux partition

liveCD-iso-to-disk <.iso, w/ full path> /dev/<USB DOS partition>

mount <USB Linux partition> /mnt

cp <CentOS.iso> /mnt/

大猩猩科技 hr打電話來囉唆

noreply@blogger.com (David Lin) — Tue, 03 Aug 2010 04:02:00 +0000

上個月某日本人換工作後事情很繁忙一時忘了將人力銀行的profile關掉

於是大猩猩科技的hr小姐來了一封email 提到想跟我聊聊但卻也沒寫任何職稱/職務內容的細節只有草草提了一些大猩猩科技集團的簡介

我想那就隨意聯絡直接詢問職稱/職務內容/薪水範圍或是104連結

沒想到來來回回寫了3/5次email 大猩猩科技的hr卻無法給我任何職稱與細節

後來該大猩猩科技的hr經理與我約了一次電話interview

到該日大猩猩科技的資深hr經理打來內容大概如此:

大猩猩科技hr: 您為什麼想從X公司離開?

David Lin: 喔不好意思我上個月才從X公司離開現在已經在Y公司服務數字人力銀行網站上的資料尚未更新

大猩猩科技hr: 現在的年輕人都OOXX 喜歡跳槽等等等(老媽子囉唆樣傻眼然後沒注意聽)

David Lin: 社會現實我有老婆小孩長輩需要扶養

大猩猩科技hr: 年輕人不能為了錢工作

David Lin: (心想:我糙你做公德干我屁事你打來教訓我是怎樣) 生活要顧 (*敷衍一下)

大猩猩科技hr: blah blah blah blah (繼續教訓我)

David Lin: (心想: 奇怪這種詭異的工作態度陳腐的思想還能做hr經理喔那這家公司也不是我會想要去的地方啦) *冷笑哈哈哈好的沒問題那有需要在連絡

暈倒浪費我的生命幹麻

用ubuntu開rdp rdesktop到windows機器

noreply@blogger.com (David Lin) — Wed, 07 Jul 2010 14:40:00 +0000

How to use

rdesktop (Windows remote desktop connection)

rdesktop is a client program that allows you to connect from your Ubuntu computer to your Windows computer to remote control the Windows computer. In other words, while you are sitting in front of your Ubuntu computer at home, you can log into and access your Windows computer as if you are sitting in front of the Windows computer. Seeremote desktop software.

rdesktop and VNC and Terminal Server Client (comparison)
There is another similar program called VNC. VNC is slow compared to rdesktop and VNC connection is unencrypted while rdesktop connection is encrypted by default. But there is a way to use VNC with encrypted connection. VNC works on almost all operating systems. See comparison of remote desktop software.
Terminal Server Client (Applications > Internet > Terminal Server Client) is a GUI front-end to VNC and rdesktop. If you open Terminal Server Client, you will see Protocol option (RDP, RDPv5, VNC), RDP and RDPv5 are for rdesktop connection. You should use Terminal Server Client if it works fine and if you are ok with this bug. If you want more control (such as connecting a specific local folder or other device redirection, hiding or keeping window manager decoration, using seamlessRDP), use rdesktop following this guide.

What to do on the Windows side (the server side)

The Windows computer you will connect to must be running Windows XP Pro or a higher version of Windows.

* If you have a weak Windows login password (such as john1, aaaaaaaaaaaaa, abcabc), change it to a stronger password that is longer than 10 characters and that is not a combination of words that can be found on a dictionary. You need to do this because if you enable Remote Desktop Connection, anybody with internet access can try to log into your Windows computer with automated cracking tools.

* Enable Remote Desktop Connection on the Windows computer following this guide. If the Ubuntu computer you will be connecting from has a static ip address, you can set your Windows Firewall to allow remote desktop connection from only your Ubuntu computer and refuse connection from other computers. To do this, open Windows Firewall, click on the Exceptions tab, Select 'Remote Desktop', click 'Edit', click 'Change Scope...', choose 'Custom list' and enter the IP addresses of computers from which you want to remote connect (See the attached screenshot)

What to do on the Ubuntu side (client side)

* On your Ubuntu computer, open a terminal (Application > Accessories > Terminal) and enter the following command:

Code:

rdesktop

You'll see a long list of options for rdesktop. Think of it as an rdesktop cheatsheet.

If your windows username and Ubuntu username is the same and if the static IP address of your Windows computer is (suppose) 143.210.123.456, you can now connect to your Windows computer by entering the following command:

Code:

rdesktop 143.210.123.456

If the usernames are different and your Windows username is (suppose) john, enter:

Code:

rdesktop -u john 143.210.123.456

To disconnect, open Windows Start menu and click 'Disconnect'.

Most cases, you'll use one of the following two commands:

Code:

rdesktop -u john -fP 143.210.123.456

Code:

rdesktop -u john -g 100% -PKD 143.210.123.456

Both commands display remote desktop in full screen (corresponding option : -f, -g 100% -D) and bitmap cache is enabled for speed (-P). There is a bug and clipboard functionality (copy paste between remote desktop and local one) doesn't work in full screen mode. To make clipboard work, you need to escape full screen mode by pressing ctrl+alt+enter. ( Press ctrl+alt+enter again to get back to full screen mode. ) This bug only affects the first command and not the second command. So if you need to copy and paste between two desktops a lot, go with the second command. (Install dragking if you want to copy by selecting a text and paste by middle-click on your Windows desktop. dragking.ahk script requires ahkstructlib.ahk). The two commands also differs in how the keybindings are handled,

* First command : if you press alt+tab (keyboard shortcut for switching windows), it doesn't switch windows from Ubuntu desktop, it switches from the remote Windows desktop. And ctrl+alt+right (for switching to another workspace) doesn't work. This is useful when you want to alt+tab in the remote Windows.

* Second command : keyboard shortcuts such as ctrl+alt+right and alt+tab works on your Ubuntu desktop. This is useful because you can put the remote desktop on the seperate workspace then you can switch between your local ubuntu workspace and your remote Windows desktop just by pressing ctrl+alt+right and ctrl+alt+left.

Create a launcher

Opening terminal every time you want to remote connect to Windows is of a hassle. To create a lancher, right click on the top panel, click 'Add to Panel...', select 'Custom Application launcher', click 'Add' button, type your command in the command field. (See the attached screenshot). if the command contains %, replace % with %%.

useful rdesktop options

-r disk:doc=/home/john/Documents,pic=/home/john/Pictures
With this option, rdesktop connects folders /home/john/Documents and /home/john/Pictures to Windows remote desktop. Open Windows Start menu and click 'My Computer' and you will see the connected folders named doc and pic.

-r sound:local
This option is to hear sound from Windows remote desktop.

See /usr/share/doc/rdesktop/redirection.txt for more on device redirection.

-k ko
This sets the keyboard layout to Korean. This makes Hangul key work on the remote desktop. See /usr/share/doc/rdesktop/keymap-names.txt

How to use rdesktop over ssh

rdesktop is vulnerable to man-in-the-middle attacks. So you might want to use it over ssh.

Follow this lifehacker article to set up an ssh server on the Windows computer. (You can edit sshd_config with a Windows editor supporting UNIX texts such as notepad2) You might want to set Windows Firewall to disallow ssh access from IP addresses other than your Ubuntu computer's. Take note of the RSA key fingerprint by open a cygwin shell (Start > All Programs > Cygwin > Cygwin Bash Shell) and entering :

Code:

ssh-keygen -lf /etc/ssh_host_rsa_key.pub

On your Ubuntu computer, check if the local port 3389 (default listening port number for Windows Remote Desktop service) is available:

Code:

telnet localhost 3389

The output should be similar to :

Code:

$ telnet localhost 3389 Trying 127.0.0.1... telnet: Unable to connect to remote host: Connection refused

, which means the port is available. If the port is already in use the output should be similar to :

Code:

$ telnet localhost 3389 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'.

If the port is available, connect to windows ssh service with port forward:

Code:

ssh -L 3389:localhost:3389 john@143.210.123.456

The port 3389 of your Ubuntu is forwarded to the port 3389 of your Windows. The output should be like :

Code:

$ ssh -L 3389:localhost:3389 john@143.210.123.456 The authenticity of host '143.210.123.456 (143.210.123.456)' can't be established. RSA key fingerprint is f3:90:3b:70:20:a2:52:fe:fx:a2:90:70:3b:f3:6a:22. Are you sure you want to continue connecting (yes/no)?

Check if the presented RSA key fingerprint is the same as the one you took note of. If they are different, you should answer no, the host you are connecting to is not your real Windows computer, it may be a man in the middle. If they are same, answer yes and proceed. You can get out of the ssh session by entering 'exit' but don't do it now.

Open another terminal and make rdesktop connect to localhost:

Code:

rdesktop -u john localhost

The remote desktop will be a bit slow. cygwin is slow.

What if the port 3389 was already in use? Find a different available port (suppose, 3099) and connect to Windows ssh like this :

Code:

ssh -L 3099:localhost:3389 john@143.210.123.456

The port 3099 of your Ubuntu is forwarded to the port 3389 of your Windows.

Open a new terminal and make rdesktop connect to localhost at the port 3099 :

Code:

rdesktop -u john localhost:3099

GoogleCL Google Command Line

noreply@blogger.com (David Lin) — Wed, 30 Jun 2010 14:30:00 +0000

這個太屌超多應用

Install GoogleCL in ubuntu

sudo apt-get install python-gdata

sudo dpkg -i http://googlecl.googlecode.com/files/googlecl_0.9.5-1_all.deb

create album in picasa:

google picasa create –album "Test Photos" ~/photos/admin/*.jpg

mp3 id3 tag的編碼修正

noreply@blogger.com (David Lin) — Fri, 25 Jun 2010 14:02:00 +0000

變檔名的編碼
convmv -f big5 -t utf8 --notest *.mp3

變mp3的id tag
sudo apt-get install python-mutagen

find . -iname "*.mp3" -execdir mid3iconv -e BIG5 "{}" \;

就這麼簡單

微軟正黑體 for ubuntu

noreply@blogger.com (David Lin) — Wed, 23 Jun 2010 16:36:00 +0000

sudo apt-get install msttcorefonts

就只有這樣了

雲端第一人axa cheng曾經預言過RFID應用會成為主流

noreply@blogger.com (David Lin) — Tue, 22 Jun 2010 02:25:00 +0000

Nokia未來出的手機都會支援NFC

Nokia副總裁Anssi Vanjoki在前些日子表示未來旗下的智慧型手機機種都會支援NFC（Near-field Communication ），打算在明年，也就是2011年全面導入NFC，不過僅限於智慧型手機部份。那麼，什麼是 "NFC" 呢？NFC中文叫做「近場無線通訊」，是建構在RFID之上，最常見的應用就是HTC Tatoo可以當悠遊卡來用，就是因為RFID嵌入到手機裡，透過NFC的機制來感應。
NFC的有效距離通常為20公分，有主動與被動模式，被動模式不會發射訊號，所以不需要電池，目前以飛利浦Mifare與Sony的Ferlica等兩種規範為大宗。看來支援NFC對Nokia手機是個不錯的加值功能，但是會對節節敗退的智慧型手機佔有率有幫助嗎？讓我們繼續看下去。

Google Chrome 官方沒有video downloader

noreply@blogger.com (David Lin) — Mon, 21 Jun 2010 15:26:00 +0000

但是很多video太長 download下來比較容易看所以請用:

http://www.chromeextensions.org/music-videos-photos/easy-youtube-video-downloader/

htaccess redirect when site under maintenance

noreply@blogger.com (David Lin) — Thu, 20 May 2010 01:27:00 +0000

Options +FollowSymlinks

RewriteEngine on

RewriteCond %{REQUEST_URI} !/maintenance.html$

RewriteRule $ /maintenance.html [R=302,L]

David Lin

temp monitoring

convert mkv to avi

what i learnt from my acl repair surgery

convert big5 text into utf8

use cron to control deluge download

sed to find a block of text

ubuntu lamp 開發環境

付出與收穫會成正比

policy routing for multi homed linux box

SCIM中文輸入在chrome無法focus的問題

威達 亂搞 浪費我的時間

SMF censored text for post only

Slow SSH Authentication

非常不環保的 馬崗豆花

uniqlo 之 剛出院的偽畫家style

Contessa 嚴重氧化

centos bootable usb

大猩猩科技 hr打電話來囉唆

用ubuntu開rdp rdesktop到windows機器

GoogleCL Google Command Line

mp3 id3 tag的編碼修正

微軟正黑體 for ubuntu

雲端第一人axa cheng曾經預言過RFID應用會成為主流

Google Chrome 官方沒有video downloader

htaccess redirect when site under maintenance

威達亂搞浪費我的時間

非常不環保的馬崗豆花

uniqlo 之剛出院的偽畫家style