Re: Is that problem for awk?

On 2/7/2008 2:37 PM, Kurda Yon wrote:
> Hi,
> 
> I have the following problem. In my text-file each line has the
> following format:
> 
> field_1 field_2 ... field_n (tf. field_1a, field_2a ... field_ka)
> 
> And I need to extract field_1a, field_2a, ...and field_ka. Here I see
> several subproblems which I cannot solve:
> 1. Different lines have different number of fields before the
> (tf. ... ) block.
> 2. (tf. ... ) blocks also contain different number of fields.
> 3. There is no space between "field_ka" and ")". And I want to remove
> ")".
> 
> Can this problem be easily solved in awk?

Yes:

$ cat file
field_1 field_2 ... field_n (tf. field_1a, field_2a ... field_ka)
$ awk 'gsub(/.*\(....|\)$/,"")1' file
field_1a, field_2a ... field_ka

Regards,

	Ed.