Multiple-Line Comments in Shell

<<COMMENT
This is a comment line.
This is another comment line.
COMMENT

Note: "COMMENT" can be anything. Just make sure they are paired.

Change Default Terminal Size in Ubuntu 10.04

Go to System -> Preferences -> Preferred Applications -> System (tab)

Change Terminal Emulator to "Custom".
Command: gnome-terminal --geometry=86x24
Execution flag: -x

Drag Panels from One Monitor to Another in Ubuntu

Press Alt and drag them across.

Reinstall the ATI Driver in Ubuntu

1. Remove old fglrx drivers
1. sudo apt-get remove xorg-driver-fglrx fglrx-kernel-source fglrx
2. sudo /usr/share/ati/amd-uninstall.sh
2. Restart your computer, so that these old drivers are not in use. 
3. Download the correct ATI driver from amd.com. 
4. Install the downloaded driver, e..g, sudu sh amd-driver-installer-12-4-x86.x86_64.run
5. Modify the screen resolution in /etc/X11/xorg.conf if necessary: 

Section "Screen"

Identifier "aticonfig-Screen[0]-0"

Device "aticonfig-Device[0]-0"

Monitor "aticonfig-Monitor[0]-0"

DefaultDepth 24

SubSection "Display"

Modes "1280x1024" "1024x768" "800x600"

Viewport 0 0

Depth 24

EndSubSection

EndSection

Fix the Garbled Chinese Characters in Amarok

find . -iname '*.mp3' -execdir mid3iconv -e GBK {} \;

Merge Multiple PDFs

1. install pdftk: sudo apt-get install pdftk
2. pdftk <a.pdf> <b.pdf> <c.pdf> cat output <all.pdf>

Search Content Using find and grep

find . -exec grep -Hn <the string you want to search for> {} \;

Small Tricks in LaTeX

• Make a figure span two columns in LaTeX

\begin{figure*}
\end{figure*}

• Change column spacing of a table

\begin{table}[t]

\setlength\tabcolsep{2pt}

...

\end{table}

用英语描述疾病病情

用英语描述疾病病情

VNC server

x11vnc -forever -usepw -httpdir /usr/share/vnc-java/ -httpport 5800