Tuesday, December 23, 2008

playing with VI editor

This might be helpful to you:

How to remove ^M characters (they are end of line DOS's characters) from a file in vi:

type this

where ^V is control-v and ^M is control-m.

is the basic search and replace command in vi and the command you typed will look like this
:%s/^M//g. It will replace what is between the first and second / with what is between the 2nd and 3rd /. Between the first and second slash, we have ^M and between the second and third we have an empty string since we are replacing with an empty string.

means to replace all occurences.

Sunday, December 7, 2008

ssh server

Sometimes, I do a clean install of ubuntu and I forget to reinstall ssh server... I get this error when trying to ssh to the box that doesn't have ssh : ssh: connect to host port 22: Connection refused

Need to install ssh server and client:
sudo apt-get install openssh-server openssh-client

Friday, December 5, 2008

Add application icons and executables to gnome

This is partly taken from :

1. create an executable
sudo touch /usr/bin/eclipse
sudo chmod 755 /usr/bin/eclipse
sudoedit /usr/bin/eclipse
#export MOZILLA_FIVE_HOME="/usr/lib/mozilla/"
export ECLIPSE_HOME="/opt/eclipse"

$ECLIPSE_HOME/eclipse $*
2. create a desktop icon
sudoedit /usr/share/applications/eclipse.desktop
[Desktop Entry]
Comment=Eclipse IDE

Wednesday, December 3, 2008

Already a semester...

I just handed in the last assignment of the semester. Can't believe it's already over ! They say time flies and it surely does !:)