awk will not parse the way I want it to.

[Steven E. Protter]

Because I'm a pathetic awk programmer.

Here's the code:

IP=192.168.0.50
OCT1=`echo $IP | awk -F: '/^[^#*]+./ {print $1}' -`
echo $OCT1

OCT2=`echo $IP | awk -F: '/^[^#*]+./ {print $2}' -`
echo $OCT2

OCT3=`echo $IP | awk -F: '/^[^#*]+./ {print $3}' -`
echo $OCT3

Output is

192.168.0.50

then two blank lines.

Intended output is

192
168
0

Yes, I'm trying to break up an IP adderss.

I tried some awk code that I use to pull the data from a colon : delimited oratab database, replaced the : with a dot . and get bad results.

Thanks in Advance for the help.

Points for any effort. Rabbit for any code that works.

SEP

[John Carr_2]

awk -F"=" '{ print $2}' | awk -F"." '{ print $1)'

you can work the rest out :-) John.

[john korterman]

Hi,
# OCT1=`echo $IP | awk -F. '{print $1}'`

and of course OCT2 for $2 etc.

regards,
John K.

[John Carr_2 · Accepted solution]

echo $IP | awk -F"=" '{ print $2}' | awk -F"." '{ print $1)'

echo $IP | awk -F"=" '{ print $2}' | awk -F"." '{ print $2)'

echo $IP | awk -F"=" '{ print $2}' | awk -F"." '{ print $3)'

ignore the last entry this is what i meant
:-) jOHN.

[Steven E. Protter]

Thank you gentlemen.

Thread closed.

My embarassment forgotten.

SEP

[John Carr_2]

SEP you put a big smile on my face and a new hat on my head
:-) John

off to dinner now see you all later

[Steven E. Protter]

I do so much like handing out hats.

Even by accident like this time.

itrc rocks!

SEP

[curt larson_1]

just another way

print "$IP" | tr -d "\." | read oct1 oct2 oct3 oct4 rest

print "1st = $oct1\n2nd = $oct2\n3rd = $oct3"

[Steven E. Protter]

Nice work, oh wizardly one.

SEP

[Jean-Louis Phelix]

Hi,

Just for fun and for those who don't know IFS in shell :

IP=192.168.0.50
OFS="$IFS" # save $IFS just in case
IFS=.
set +A OCT $IP
IFS="$OFS" # restore default IFS
echo ${OCT[0]} ${OCT[1]} ${OCT[2]} ${OCT[3]}
echo ${OCT[@]} # print whole array ...

Regards.

[James Lynch]

Since you orignially asked how to use awk to do this:

echo $IP | awk '{ FS ="." ; printf("%d\n%d\n%d\n", $1, $2, $3); }'

And produces the following:
192
168
0

JL

[Jean-Louis Phelix]

Hi,

Getting IP fields is not so hard :^) . Even tr (lightest than awk or sed can do it) :

echo $IP | tr '.' '\012'

Setting variables is more useful in a script :

echo $IP | tr '.' ' ' | read OCT1 OCT2 OCT3 REMAINDER

Regards.

[Jean-Luc Oudart]

another one :

IP=192.168.0.50
echo $IP | awk '{split($1,tab,"."); printf("%d\n%d\n%d\n",tab[1],tab[2],tab[3]);
}'

Regards,
Jean-Luc

[Steven E. Protter]

I am bookmarking this post and assigning solution level pointage to this latest input.

That is in spite of the thread closed notice.

The input is on topic, tests out correctly and is much appreciated. Thats why my threads are never truly closed.

SEP