Ask Doctor Shell ...
This site uses stylesheets and XHTML1.1. You might want to switch to a modern browser like Firefox, Mozilla, or maybe IE6.

Some Remarks on Shell Programming and Unix Tools

How can I replace the second character on a text file ...

... or: I tried a vi command, but that changed other characters as well.

read more on this topic

I want to see line number n and some lines before ...

... or: there must be a way to cut some lines of a file using head and tail, but how ...

read more on this topic

Enjoy!

Valid XHTML 1.1! Valid CSS!

@(#) $Id: index.shtml,v 1.5 2005/06/24 04:49:46 kdo Exp $