Cameron Simpson wrote:
> | I see your sed and raise you an optimized but less readable grep.
> |
> | grep -oE [0-9]+$ foo.txt>new_file.txt
>
> Hoping his numbers are whitespace delimited,
Never said that. ;)
> awk '{print $NF}' foo.txt >new_file.txt
I don't think print $NF is particularly readable, but it's definitely a
matter of opinion. :)
> I'd point out that you need to do more shell quoting; if the OP has the
> misfortune to have a file called '3+$' lying around your grep won't do
> what you intend...
Ouch, bitten again by the vagaries of shell expansion. Still, I have to
note that the grep with quoting:
grep -oE "[0-9]+$" foo.txt>new_file.txt
is still shorter than your sed (well, the same length if you drop the
space before the redir... ;))
Best,
Matt Flaschen
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