Awk field seperator

[maliaka]

Hello,

echo hello1 192.168.1.9|awk 'BEGIN { FS = "." } ; { print $1"."$2"."$3}'
hello1 192.168.1

I only need to pring the first three octats from the second field and delete the first field (hello1).

The echo string is an output from a loop.

Thanks

[Steven E. Protter]

Shalom,

I have some non awk code that I was given on ITRC that does this job.

IP=`expr "${LINE}" : ".*[^0-9]\([0-9]*\.[0-9]*\.[0-9]*\.[0-9]*\).*"`

The expression above grabs the first three octets of an ip address.

It doesn't use awk though.

SEP

[Steven E. Protter]

Hey, there is some awk code after all.

OCT1=`echo $IP | awk -F. '{print $1}'`
OCT2=`echo $IP | awk -F. '{print $2}'`
OCT3=`echo $IP | awk -F. '{print $3}'`
IPB=`echo $OCT1.$OCT2.$OCT3`

After what I posted.

Sorry for splitting the post, it was not intentional. Please provide me the slapping I so richly deserve in the point assignment phase(e.g. don't assign to both posts).

Thanks.

SEP

[maliaka]

I know that I can use echo strings to split the fields as much as I know there is away to do all of that in one line.

10 points for the right answer.

[albanese]

Try This one

echo hello1 192.168.1.9 | awk 'BEGIN { FS = "." } ; { print substr($1,8,11)"."$2"."$3}'

result

192.168.1

[albanese]

It gives the same output the previous one has an extra character. but doest make a difference.

echo hello1 192.168.1.9 | awk 'BEGIN { FS = "." } ; { print substr($1,8,10)"."$2"."$3}'

[Yarek]

pls try:

echo hello1 192.168.1.9 | awk '{print $2}' |
awk -F"." '{print $1"."$2"."$3}'

output should be:

192.168.1



rgds

[Peter Godron]

echo hello1 192.168.1.9 | cut -d' ' -f 2 | cut -d'.' -f1-3

[Peter Nikitka]

Hi,

because the first field is 'hello1 192' in respect to the filed delimiter '.', you get what awk was told to do.

echo hello1 192.168.1.9|awk '{split($2,a,"."); printf("%s.%s.%s\n" a[1],a[2],a[3])}'

mfG Peter

[James R. Ferguson]

HI:

# echo hello1 192.168.1.9|awk -F"[ .]" 'BEGIN{OFS="."};{print $2,$3,$4>

192.168.1

Note that the input field separator is a character class consisting of a space (blank) or a dot (".").

Regards!

...JRF...