Cameron Simpson wrote:
> On 17Jan2009 20:36, Matthew Flaschen <[email protected]> wrote:
> | Dave Stevens wrote:
> | > I have a sequence of lines of ASCII text of varying length, each of which
> ends
> | > with an integer. Anyone have a quick and dirty way of getting these lines
> | > copied to a new file with only the last number on each line of the new
> file?
> |
> | How about:
> | grep -o -E [[:digit:]]+$ foo.txt > new_file.txt
>
> I see your grep and raise you a sed:
>
> sed 's/.*[^0-9]//' foo.txt >new_file.txt
I see your sed and raise you an optimized but less readable grep.
grep -oE [0-9]+$ foo.txt>new_file.txt
Matt Flaschen
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