Re: [PLUG] scanning a line

[Alex Barylo <hash1024@yahoo.com>]

> we all love grep and that's for a reason. however,
> sometimes i wish to
> scan a single line for a pattern and only get the
> pattern back. simply
> example:
> 
> the pattern "[0-9]*" should return the string in the
> second column
> when applied to the string in the first column:
> 
> aaaa9879aaaaaa0870aaaaaaaaaaa09    =>  9879 0870 09
> aa908798986986aaaaaaaaaaaaaaaaa    =>  908798986986

If your pattern is simple enough that you easily can find
an 'anti-pattern' for it, you can try this:

grep '[0-9]' file | tr [:alpha:] ' ' | tr -s ' ' ' '

I don't remeber if tr can negate patterns, at least tr
[^0-9] ' ' did not work.

Alex.


=====
Before the accident, I could not even spell UNIX

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