Open or not open, that is the stupid question.

You have two way to install jython on Ubuntu: 1. Use apt-get: # sudo apt-get -y install jython # jython --version 2. Download source: # cd /tmp # wget http://sourceforge.net/projects/jython/files/jython/2.5.2/jython_installer-2.5.2.jar/download # mv ./download ./jython.jar # java -jar ./jython.jar ... following the wizard. # export PATH=$PATH:/opt/jython/bin # (if you installed Jython in /opt/jython) # jython --version Wish this helps. regards, Stanley Huang

You have two way to install it. 1. Use apt-get: # sudo apt-get -y install scala 2. Download source: (browse http://www.scala-lang.org/downloads first) # cd /opt # wget http://www.scala-lang.org/downloads/distrib/files/scala-2.9.0.1.tgz # tar -C /opt zxf ./scala-2.9.0.1.tgz # export PATH=$PATH:/opt/scala-2.9.0.1/bin # scala -version Wish this helps. regards, Stanley Huang

Once you upgrade Ubuntu from 10.04 to 11.04, and you will find out the network-manager won't manage wireless any more. But you still could change NetworkManager.conf to enable it. # sudo vi /etc/NetworkManager/NetworkManager.conf and change "managed" attribute from "false" to “true“ and restart it. # sudo /etc/init.d/network-manager restart Wish this helps. regards, Stanley Huang

If you want to sync time with time server in Ubuntu, you could use command ntpdate + time_server. And don't forget write date into bios too. ntpdate time.stdtime.gov.tw && hwclock -w Wish this helps. regards, Stanley Huang

Just use -P and '\t' with grep command. Ex. # grep -P '\t' /etc/passwd Wish this helps. regards, Stanley Huang

If you want to modify mp3 in Ubuntu, you could use "audacity". And you could download it from reposity. The commands as the following. # apt-cache search audacity create-resources - shared resources for use by creative applications audacity - fast, cross-platform audio editor audacity-data - fast, cross-platform audio editor (data) audacity-dbg - fast, cross-platform audio editor (debug) vamp-plugin-sdk - audio analysis and feature extraction plugins (SDK) # apt-get -y install audacity After for a while, I heard a good tool to convert mp4 to mp3 call avidemux # apt-cache search avidemux libavidemux0 - a free video editor - shared libraries avidemux - a free video editor - GTK version avidemux-cli - a free video editor - command line version avidemux-common - a free video editor - Internationalization files avidemux-plugins-cli - a free video editor - CLI plugins avidemux-plugins-common - a free video editor - common files for plugins avidemux-plugins-gtk - a free video ...