In case the kernel changes, and you need to re-compile VirtualBox, use the following command in su mode:
/etc/init.d/vboxdrv setup
Changing default MP3 encoding settings for 256 bit rate
Use the following command in the terminal to see values for lame encoder
gst-inspect-0.10 lame
I've added a bitrate parm in addition to lowering the vbr-quality to 0 from 6 for best quality
My Preferred format setings:
audio/x-raw-int,rate=44100,channels=2 ! lame name=enc mode=0 bitrate=256 vbr-quality=0 ! id3v2mux
Copy / paste in gnome-terminal
Run the following two commands; however, I did not find the copy function did me much good, because I still had to highlight the text with the mouse. It was nice to have a paste feature though.
Paste Function
gconftool-2 -t str -s /apps/gnome-terminal/keybindings/paste "
Copy Function
gconftool-2 -t str -s /apps/gnome-terminal/keybindings/copy "
Compare Folders
Use the diff command with the -q switch for simple output, such as:
diff -q folder1 folder2 | sort > compare.txt
Play a sound with bash script “playsound”
At the time of this writing the package to install was the following:
sudo apt-get install libsdl-sound1.2
The command in the bash script to use is as follows:
playsound ding.wav
Change default startup location of gnome-terminal
In your home folder
gedit .bashrc
Add the following lines at the bottom of the file:
# CHANGE DEFAULT LOCATION OF STARTUP
cd ~/Desktop
Using Alias with Run Application
If you define an alias, it will then run in the "Run Application" window. You can put a bash script in your home folder, make it executable, and use the following command to run it from "Run Application".
xterm -e ./myscript.sh
You can try to research the following to avoid using xterm.
Refer: link
Reset Desktop Settings Back to Default in Ubuntu
Drop to a terminal by hitting CTRL + ALT + F1, login to your account, and run this command:
rm -rf .gnome .gnome2 .gconf .gconfd .metacity
Get back to your GUI desktop by hitting CTRL + ALT + F7
Logout and Logon
Your desktop settings are now reset
Use Ubuntu with VirtualBox Behind Proxy
There seems to be problems with Ubuntu 9.04. It is possible to install from CD-ROM instead by using:
- Press System → Administration → Software Sources.
- Go to the Third Party Software tab and click on the Add CD-ROM button.
- Insert the CD.
Do the following in your terminal prior to using apt-get:
export http_proxy=http://username:pword@HALPROXY1.flagship.hal.com:80
Installing Ubuntu 9.04 on Dell 1545 Laptop
Basic Install Items
Reference Guide Ubuntu904
- Ubuntu restricted extras from Add/Remove
- DVD Playback
- sudo apt-get install libdvdread4 totem-gstreamer
- sudo /usr/share/doc/libdvdread4/install-css.sh
- check with Synaptic Package Manager you should see the following packages installed after searching for libdvdread4, libdvdnav4, libdvdcss2
- System, Preferences, Main Menu -- trim down menu, remove things you are not going to use
- Nautilus Edit, Preferences, Preview -- turn off thumbnails
- Install Sun Java 6
- sudo apt-get install sun-java6-jre sun-java6-plugin
- sudo apt-get install sun-java6-jdk
- sudo update-alternatives --config java
Lessons Learned
- Turn off visual effects, it causes VLC and MPlayer to crash by locking the computer.
- After you install Eclipse you will need to run the sudo update-alternatives --config java again because Eclipse installs its own version of Java, and this will set the defaults. Sun's version runs faster.
Flavors of the Month
- Comix - Manga viewer
- Gwenview - Simple image manipulation
- Eclipse
- ISO Master - Redo contents of ISO images
Other Items
- Here's the grub menu.lst as of May 3, 2009: menu.lst