[expert] Who Broke Sort?

2002-09-05 Thread Ric Tibbetts

Ok, it's been a long time since I've needed to do this, and maybe I just
forgot how.

But:

To sort out duplicate lines in a text file, didn't "sort -u" do the
trick? Or am I getting fuzzy & old?

I have a large text file that I receive on a regular basis ( a couple
times a week). I need to clean it up for import into a database. I'm
stuck on getting duplicate lines out. I swear, I just used to use "sort
-n", but that isn't working now.

Can someone shed a little light on how to do this?

Thanks in advance

Ric







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Re: [expert] Who Broke Sort?

2002-09-05 Thread Wolfgang Bornath

On Thu, Sep 05, 2002 at 18:50 -0400, Ric Tibbetts wrote:
> Ok, it's been a long time since I've needed to do this, and maybe I just
> forgot how.
> 
> But:
> 
> To sort out duplicate lines in a text file, didn't "sort -u" do the
> trick? Or am I getting fuzzy & old?
> 
> I have a large text file that I receive on a regular basis ( a couple
> times a week). I need to clean it up for import into a database. I'm
> stuck on getting duplicate lines out. I swear, I just used to use "sort
> -n", but that isn't working now.
> 
> Can someone shed a little light on how to do this?
 
man sort says that '-n' works in check mode which has to be activated by
a leading '-c'.

I never used sort and I only have the german man page. so you want to
check man sort yourself to be sure.

wobo
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Re: [expert] Who Broke Sort?

2002-09-05 Thread David Relson

At 06:50 PM 9/5/02, Ric Tibbetts wrote:
>Ok, it's been a long time since I've needed to do this, and maybe I just
>forgot how.
>
>But:
>
>To sort out duplicate lines in a text file, didn't "sort -u" do the
>trick? Or am I getting fuzzy & old?
>
>I have a large text file that I receive on a regular basis ( a couple
>times a week). I need to clean it up for import into a database. I'm
>stuck on getting duplicate lines out. I swear, I just used to use "sort
>-n", but that isn't working now.
>
>Can someone shed a little light on how to do this?
>
>Thanks in advance
>
> Ric

"man sort" will show you what the "-n" option does.

To remove duplicates, you can do "sort out.file" or "sort 
-u out.file".




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Re: [expert] Who Broke Sort?

2002-09-05 Thread Ric Tibbetts

On Thu, 2002-09-05 at 19:06, David Relson wrote:
> At 06:50 PM 9/5/02, Ric Tibbetts wrote:
> >Ok, it's been a long time since I've needed to do this, and maybe I just
> >forgot how.
> >
> >But:
> >
> >To sort out duplicate lines in a text file, didn't "sort -u" do the
> >trick? Or am I getting fuzzy & old?
> >
> >I have a large text file that I receive on a regular basis ( a couple
> >times a week). I need to clean it up for import into a database. I'm
> >stuck on getting duplicate lines out. I swear, I just used to use "sort
> >-n", but that isn't working now.
> >
> >Can someone shed a little light on how to do this?
> >
> >Thanks in advance
> >
> > Ric
> 
> "man sort" will show you what the "-n" option does.
> 
> To remove duplicates, you can do "sort out.file" or "sort 
> -u out.file".

Yep, exactly as I remembered it. But -u didn't seem to be working.
It turned out to be a "very" minor difference in the lines, in a very
large file.

The first two places I looked were "man sort", and "info sort". Both
said that -u should work.
I suspect that it does. The fault may have been mine on this one.

Thanks!

Ric





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