Very Computer

by **Wanda Roun** » Wed, 16 Jan 2002 01:33:55

I needed to search data for one or the other term, but not both.

With this kind of data:

abc:def:ghi:jkl
abc:ghi:jkl:mno
ghi:jkl:mno:pqr
def:abc:jkl:ghi
def:abc:jkl:pqr
def:jkl:pqr:stu

Looking for abc or ghi, but not both, these work (same idea):
awk '!(/abc/&&/ghi/)' datafile|awk '(/abc/||/ghi/)'
egrep -v 'abc.*ghi|ghi.*abc' datafile |egrep "abc|ghi"

Is there anything awk or grep that is more concise? Any way to do it with sed?

Wanda Round

by **Kenny McCorma** » Wed, 16 Jan 2002 02:00:51

Quote:>I needed to search data for one or the other term, but not both.

>With this kind of data:

>abc:def:ghi:jkl
>abc:ghi:jkl:mno
>ghi:jkl:mno:pqr
>def:abc:jkl:ghi
>def:abc:jkl:pqr
>def:jkl:pqr:stu

>Looking for abc or ghi, but not both, these work (same idea):
>awk '!(/abc/&&/ghi/)' datafile|awk '(/abc/||/ghi/)'
>egrep -v 'abc.*ghi|ghi.*abc' datafile |egrep "abc|ghi"

>Is there anything awk or grep that is more concise?

gawk '(/foo/)+(/bar/) == 1'

Now, the theoretically interesting question is: Why are the parens
necessary?

by **Ben.Altma** » Wed, 16 Jan 2002 02:05:42

> I needed to search data for one or the other term, but not both.

> With this kind of data:

> abc:def:ghi:jkl
> abc:ghi:jkl:mno
> ghi:jkl:mno:pqr
> def:abc:jkl:ghi
> def:abc:jkl:pqr
> def:jkl:pqr:stu

> Looking for abc or ghi, but not both, these work (same idea):
> awk '!(/abc/&&/ghi/)' datafile|awk '(/abc/||/ghi/)'
> egrep -v 'abc.*ghi|ghi.*abc' datafile |egrep "abc|ghi"

> Is there anything awk or grep that is more concise? Any way to do it with sed?

sed -n '{ /abc.*ghi/d; /ghi.*abc/d; /abc/p; /ghi/p; }' file

by **Wanda Rou** » Sat, 19 Jan 2002 22:03:28

> >I needed to search data for one or the other term, but not both.

> >With this kind of data:

> >abc:def:ghi:jkl
> >abc:ghi:jkl:mno
> >ghi:jkl:mno:pqr
> >def:abc:jkl:ghi
> >def:abc:jkl:pqr
> >def:jkl:pqr:stu

> >Looking for abc or ghi, but not both, these work (same idea):
> >awk '!(/abc/&&/ghi/)' datafile|awk '(/abc/||/ghi/)'
> >egrep -v 'abc.*ghi|ghi.*abc' datafile |egrep "abc|ghi"

> >Is there anything awk or grep that is more concise?

> gawk '(/foo/)+(/bar/) == 1'

> Now, the theoretically interesting question is: Why are the parens
> necessary?

Thanks for the concise method.

So then
gawk '(/foo/)*(/bar/) == 1'
is the same as AND

and
gawk '(/foo/)*(/bar/) == 0'
will find either or neither but not both.

Wanda

Very Computer

data search either but not both

data search either but not both

data search either but not both

data search either but not both

data search either but not both