Re: [1/2OT] something about sed

[lina <lina.lastname@gmail.com>]

On Monday 27,February,2012 12:16 AM, Allan Wind wrote:
> On 2012-02-26 23:30:55, lina wrote:
> > $ echo "GNU linux is cool" | sed -e 's/\(<[^ ]*>\)\([ ]*\)\(<[^ ]*>\)/\3\2\1/g'
> > GNU linux is cool
>
> What is it that you are trying to do?  The regex is looking for

It's an example from a book. I just clumsily wish to get some 
improvement by understanding some examples.

> <optional non-space>optional space<optional non-space>
>
> and as there are no<>  in the input nothing matches.  The -n
> argument to sed quite useful to see this in which case you use
> the p command to print what matches.

Thanks,

Best regards,
> /Allan