Re: sed problem

From: Anthony Borla (ajborla_at_bigpond.com)
Date: 02/27/05 

Date: Sun, 27 Feb 2005 05:00:47 GMT

<wyl_lyf@yahoo.com> wrote in message
news:1109469286.744634.132350@f14g2000cwb.googlegroups.com...
>
> Hello!
>
> Thanks for the reply.
>
> There is a blank in between group of entries. I could use
> awk or grep.
>
> Not sed in particular. Its just the first thing that came in
> my mind.;) But how do I use awk or grep for this?
>
> by run, i mean the next thing it picks up is the next group
> of text. :)
>
> > <snip>
> > > Input file:
> > > a=123
> > > b=456
> > > c=789
> > >
> > > a=abc
> > > b=def
> > > c=ghi
> > >
> > > I want to traverse through the file and get the input by
> > > group.
> >

I'm not exactly how you want your output to appear, but this should give you
an idea how 'awk' might be used for this task:

/* FILE: joinline.awk */

BEGIN {
  FS = "=";

  /* These may be overriden on command line */
  if (KSEP == "") KSEP = ":";
  if (DSEP == "") DSEP = "|";
}

/[^[:blank:]]/ { v[$1] = v[$1] $2 DSEP; }

END {
  for (i in v) printf("%s %s %s\n", i, KSEP, v[i]);
}

Execute as follows [assume your data is in 'mydata.txt']:

    awk -f joinline.awk mydata.txt

or, something like [change values of KSEP and DSEP as you require]:

    awk -vKSEP=":" -vDSEP="|" -f joinline.awk mydata.txt

I hope this helps.

Anthony Borla

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