sudo service udev stop && sudo service udev start

sudo sh -c “mkdir -p ~/.android; echo 0×2080 > ~/.android/adb_usb.ini; adb kill-server; adb devices”

Maybe we need to run “mkdir -p ~/.android; echo 0×2080 > ~/.android/adb_usb.ini” as a regular user as well.

Then `adb kill-server; adb start-server; adb devices’ from a regular user (not root) also show the Nook Color.

Buy this Technocel Ear Vibe Headset

!!:gs/foo/bar: run previous command replacing foo with bar

sudo !!: run the last command as root

mount | column -t: nice layout for mount

<space> command: execute a command without saving it in the history

dig +short txt <keyword>.wp.dg.cx: query Wikipedia via console over DNS (the keyword must be single word)

netstat -tlnp: lists all listening ports together with the PID of the associated process. The PID will only be printed if you’re holding a root equivalent ID.

echo “ls -l” | at midnight: 

curl -u user:pass -d status=”Tweeting from the shell” http://twitter.com/statuses/update.xml: 

ssh -N -L2001:localhost:80 somemachine: start a tunnel from some machine’s port 80 to your local post 2001. Now you can acces the website by going to http://localhost:2001/

ffmpeg -f x11grab -s wxga -r 25 -i :0.0 -sameq /tmp/out.mpg: Capture video of a linux desktop

> file.txt: empty a file

$ssh-copy-id user@host: Copy ssh keys to user@host to enable password-less ssh logins. To generate the keys use the command ssh-keygen

ctrl-x e: Rapidly invoke an editor to write a long, complex, or tricky command. Next time you are using your shell, try typing ctrl-x e (that is holding control key press x and then e). The shell will take what you’ve written on the command line thus far and paste it into the editor specified by $EDITOR.

mtr google.com: mtr combines the functionality of the traceroute and ping programs in a single network diagnostic tool

cp filename{,.bak}: quickly backup or copy a file with bash

cd -: change to the previous working directory

: 

I have Spring beans A and B. I’d like to have a new instance of B on each method invocation on A.

- First, A should be a singleton bean and B is a prototype bean.
- Bean A can be made to be aware of the container by implementing BeanFactoryAware like this:

Note: not a desirable solution since the business code is aware of and coupled to the Spring framework. So, use method injection.

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My IP: 192.168.1.184 – jupiter: 192.168.1.15 – insite: 192.168.1.16 – repository: 192.168.1.26 (username: tdangvu)
sudo openconnect -u thaidangvu webvpn.dovetailsystems.com
sudo route add -net 192.168.1.0 netmask 255.255.255.0 dev tun0
rdesktop -u tdangvu -d dovetail.net -p P@ssw0rd -k en-us -z -P -g 1676×1000 192.168.1.184

smbmount is deprecated:

mount -t cifs //SERVER/SHARENAME MOUNTPOINT -o user=USERNAME,password=PASSWORD,workgroup=WORKGROUP,ip=SERVERIP
Dropping connected DB users as a DBA:
select sid, serial# from v$session where username = ‘your_schema‘
alter system kill session ‘sid,serial#‘

Reverse Engineering a Data Model (tables, stored procedures, functions…) using Oracle data dictionary.

Restarting NetworkManager

sudo service network-manager stop; sudo rm -f /var/lib/NetworkManager/NetworkManager.state; sudo service network-manager start

How to find invalid functions/procedures/packages:

select OBJECT_NAME from USER_OBJECTS where STATUS = 'INVALID' and (OBJECT_TYPE like '%FUCNTION%' or OBJECT_TYPE like '%PROCEDURE%' or OBJECT_TYPE like '%PACKAGE%')

How to re-compile a function/procedure/package:

alter OBJECT_TYPE OBJECT_NAME compile

gs -sDEVICE=jpeg -o bar_%03d.jpg -dJPEGQ=95 -r600x600 -g4960x7016 foo.pdf
    * -o: determines output path+filename (and saves usage of -dBATCH -dNOPAUSE)
    * -dJPEGQ: sets JPEG quality to 95%
    * -r: sets resolution to 600dpi
    * -g: sets image size to 4960x7016px
    * -sDEVICE: sets output as JPEG

Jetty Maven Plugin for Jetty 7 which supports Servlet 2.5 (not 3.0)

Andy Gibson is also an interesting name in the JavaEE world.

Upload an image of your font here then use this to find the font (it has images of all the characters in different sizes)

Bad solution:

<div style="clear:both;"></div>

Perfect cross browser solution: apply the clearfix class to any container that needs to be cleared.

.clearfix:after {
    visibility: hidden;
    display: block;
    font-size: 0;
    content: " ";
    clear: both;
    height: 0;
}
* html .clearfix             { zoom: 1; } /* IE6 */
*:first-child+html .clearfix { zoom: 1; } /* IE7 */

Java EE 5 & 6 web app archetypes

jQuery File Upload on GitHub

Logging for Hibernate

log4j.logger.org.hibernate.type = trace

Hibernate: INSERT INTO t (ID, VAL) VALUES (?, ?)
13:33:07,253 DEBUG FloatType:133 - binding '10.0' to parameter: 1
13:33:07,253 DEBUG FloatType:133 - binding '1.1' to parameter: 2

tmpfs /run/lock tmpfs nodev,noexec,nosuid,size=52428800,mode=1777 0 0
tmpfs /run/shm tmpfs nosuid,nodev,size=70%,mode=1777 0 0

IntelliJ Idea 10 Linux be Ly 20014-FTWNV-I1VEB-RSAK5-45PY5-CH735
IntelliJ Idea 11 Linux be Ly 44763-JGT3G-YWC50-5OPN1-OL8D4-H67Y4

To start the listener LISTENER: /u01/app/oracle/product/11.2.0/dbhome_1/bin/lsnrctl start LISTENER

For user whose schema will be exported:

And this is the conventional way (using exp/imp):

Oracle 11g R2 to solve sudoku with 1 sql statement link or here

@Asynchronous: call methods annotated with @Asynchronous when an event happens on the client (search for it in the Seam reference guide).