April 26, 2010

A good Javascript Calculator

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http://cc.joensuu.fi/~tniemi/tools/calc.html
April 19, 2010

rpl_malloc error with configure

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If you get a problem about an undefined reference to rpl_malloc, you probably need to do: $ export ac_cv_func_malloc_0_nonnull=yes before ...
March 19, 2010

Serial Terminal Emulator on Linux/Ubuntu

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Minicom, PuTTY, picocom, gtkterm, or cutecom Console based: 1. minicom: the grand master and the one most people use 2. picocom: a mini mini...
March 7, 2010

Sichua Earthquake and Three Gorges Dam

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From the following article, this Dam most likely have contributed to the Sichua earthquake. You use use Google Translate to read it in Engli...
March 5, 2010

ctags for matlab on Windows

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1. create a environment variable called HOME, and pointed it to whatever directory you like. On vista, I pointed to c:\Users\MYNAME 2. creat...

a short guide to enable samba server on Ubuntu

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1. sudo apt-get install samba 2. sudo vi /etc/samba/smb.conf, look for [homes] and uncomment the following lines starting with [homes], chan...

ssh file system mount

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1. sudo adduser USER fuse 2. mkdir destdir 3. sshfs USER@REMOTEHOST:. destdir done.
March 4, 2010

Setup Ubuntu to be a remote desktop server

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http://ubuntuwiki.net/index.php/Xrdp,_installing 1. sudo apt-get install xrdp 2. run as your user (not root) this: "vncserver :1 3. vi ...
February 17, 2010

List Debian installed packages by size

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dpkg-query -W --showformat='${Installed-Size;10}\t${Package}\n' | sort -k1,1n size is KBytes
February 12, 2010

Fix Mic for Skype on T61 Ubuntu 9.10

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# In Skype’s Options / Sound Devices, change “Sound In” to the raw hardware device; mine was “HDA Intel (hw:Intel:0)”, but it will take some...
February 11, 2010

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Two steps to install bootloader on your USB key You can also use this to boot into Ubuntu Wubi installation while having your windows in Hib...

Enable Windows Vista Hibernation

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run "cmd" as administrator, and run the following command: powercfg /hibernate on
February 9, 2010

Merge PDF file, FREE and EASY, NO acrobat needed

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Downloand pdftk at http://www.accesspdf.com/pdftk/, unzip it and put the pdftk.exe to c:\windows\system32 Open cmd window by go to "St...
January 11, 2010

Parse HTML

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Use this link to parse your code so that it can be pasted on blogger. http://www.blogcrowds.com/resources/parse_html.php

Mini2440 download program on Linux

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To download image to the mini2440 bootloader, the manual requires to install a Windows USB Driver, and a DNW2.exe program. I did not want to...
1 comment:
January 8, 2010

Troubleshooting: X connection to localhost:10.0 broken (explicit kill or server shutdown).

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If you remote connect to UNIX from Windows, then it's likely you will bump into this error message at least once in your lifetime: X con...
2 comments:
December 15, 2009

Ad hoc cell splitting re-post (original website down)

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Information about cell-id splitting, stuck beacons, and failed IBSS merges! From VillageTelco Jump to: navigation , sea...
1 comment:
December 10, 2009

use vim to auto format your code/document

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Load your code/document, and make sure the filetype is what you what. (use :set to see what filetype is set to). Turn indent on, and then do...
8 comments:
December 8, 2009

Linux command to find which dynamic library defines the function getaddrinfo

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find /lib /usr/lib -name '*.so*' -exec nm --dynamic --demangle --defined-only --print-file-name {} \; | grep getaddrinfo

busybox root bootstrap

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echo root:x:0:0:root:/root:/bin/sh > /etc/passwd chmod 755 /etc/passwd touch /etc/shadow now run login -f root, then you can use adduser ...