On Thu, 8 Jul 2004 lists@xxxxxxxxxxxxxxx wrote:
> HOwdy --
>
> This is seem like it should be a simple task for grep.
> I have a file that looks like this:
>
> \section{Chapter 1}
>
> 1
> One fish two fish
> 2 3
>
> Red fish blue fish
>
>
> What I want to do i remove the line that have numbers on them and
> nothing else?
Assuming that you mean you want to remove the lines that have only numbers
on them, and leave the line that has both numbers and letters, something
like this should work...
egrep -v '^[0-9 ][0-9 ]*$'
In other words, match lines beginning with a number or space, followed by
0 or more numbers or spaces.
This will leave the line with "Chapter 1" in it. If you waant to remove
that too, then all you would need is
egrep -v '[0-9]'
I would strongly recommend getting a copy of "Mastering Regular
Expressions" by Jeffrey E. F. Fredl, and/or checking out
http://sitescooper.org/tao_regexps.html if you want a really good workout
in regular expression creation.
Malcolm
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