blinuxman at tuxfamily.org
Tue Jun 24 21:45:49 UTC 2008
On Tue, Jun 24, 2008 at 07:02:07AM -0500, Tim Chase wrote:
> >I'd like to sort, maybe cut, and redirect text lines based on the 3 or 4
> >last chars; is this possible? how?
> One key element you omit is whether the lines are all the same
> length, or if they have varying lengths.
Yes they variate.
> if they have a ragged right-edge (aren't the same
> length), you'll need to do a bit more work.
I'll try by using rev and cut and uniq and sort.
> If I understand what you're trying to do, you want to isolate the
> last couple characters in the line,
Yes, the 3 or 4 latest chars.
>throwing away the rest of the
> line, sort+unique the remainder, and then dump the results to a
Yes, it is a list of "terminations" in FR I'd like to sort, but also remove
dupes of course:
example there is no need to have 200 times
>That could be done with sed and sort:
> sed 's/.*\(...\)$/\1/' src.txt | sort -u > nodupes.txt
> That should do the last three characters ("..."). If you need 4,
> just add an extra period. I used the "-u" functionality of sort
> which is the same as a basic sort+uniq call (if you need some of
> uniq's other functionality like counting, you'd have to use it
> too). The only caveat is the semi-undefined behavior if a line
> has less than 3 or 4 characters in it, which this handles, and
> just treats it as its own thing to be sorted/uniq'ed/output.
> Hope this helps,
Okay, sounds nice, will try it tomorrow.
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