Adding to the front of a line

[Matthew Flaschen]

Ray Parrish wrote:
> Hello,
> 
> I've downloaded a text file of the new sites to block to avoid the 
> conficker worm that is currently infecting Windows users, and would like 
> to send it to my Windows using friends and family. However the file 
> unfortunately has only the host names, one per line. I would like to add 
> the 127.0.0.1 and a space to the front of each line in the file before I 
> send it out, so all they have to do is copy and paste it's contents to 
> the end of their hosts files.

There are many ways.  Here's one:

while read site; do
echo "$site 127.0.0.1"
done < sites.txt > output_file.txt

Matt Flaschen