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.

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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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