Searching in previously typed commands in linux command line

CTRL-R: reverse search in command history.

CTRL-S: forward search in command history.

To search for the next occurrence just press the appropriate key combination again.

Remote debugging Java Webstart application

1. Download the xzy.jnlp file.
2. Set the JAVAWS_VM_ARGS environment variable to
   -Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8200 if the application runs with JDK 1.5 or lower
3. From a console or cmd start the application with javaws xzy.jnlp or start with javaws -J”-Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8200″ xyz.jnlp if you are using jdk 1.6
4. Check that port 8200 is listening with netstat -an
   
5. Check your firewall settings.
6. Define a new “Remote Java Applcation’ in Eclipse
7. Set the IP and port.
8. Start debugging.

(Source: Java forum & Trouble shooting and debugging guide)

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SQLPLus on Linux – get UP, DOWN, LEFT, RIGHT and other keys working

sudo apt-get install rlfe

Adding the following line to ~/.bashrc
alias sqlplus=’rlfe sqlplus’

(Found on: Paul Done’s Blog @Dev2Dev)

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