Thank you for the quick response.. I meant <tab>
The method from tronayne seems to work, but I want to replace only the first space of each line. How do I do that? do I have to write a script to do it?
if I also want to have a index line number as well, is that a way to do it?
Here is an example of output i really need. Can anyone help?
1 <tab> John <tab> 243-3244 44234
2.<tab> xxx <tab> xxx xxx