topic awk problem in Operating System - HP-UX

awk problem

Declan Heerey — Tue, 14 Nov 2006 06:03:41 GMT

I am reading a file which sometimes has two positional parameters but sometimes it has more. I.e..

File.txt

/Home/temp/user /Thisismyhome/
/Home/temp/newuser /Thisismyhome/
/Home/temp/bob /Thisismyhome and something/

When I print $1,$2 I get

/Home/temp/user /Thisismyhome/
/Home/temp/newuser /Thisismyhome/
/Home/temp/bob /Thisismyhome

But I need to include the “and something/” from the last line i.e. $3 and $4

So I want to print something like $1, $2* (the star being to the end of the line)

Anybody got any ideas?

All help appreciated

Declan

Re: awk problem

Peter Godron — Tue, 14 Nov 2006 06:14:34 GMT

Declan,
until you get your awk solution:

#!/usr/bin/sh
while read dat1 dat2
do
echo $dat1
echo $dat2
done < datafile

dat1 = Data to first space
dat2 = All other data to end of line

If you add dat3 to the read line:
dat1 = Data to first space
dat2 = Data from end of dat1 to second space
dat3 = All other data to end of line

Re: awk problem

spex — Tue, 14 Nov 2006 07:32:09 GMT

Hi Declan,

How about:

# awk -F' /' '{print $1,$2}' File.txt

PCS

Re: awk problem

Hein van den Heuvel — Tue, 14 Nov 2006 07:50:00 GMT

Just print $0 ?

Remember, you can also set NF.
So you can do: awk '{NF=4; print}' x.txt

Just keep on printing?
awk '{print $1,$2,$3,$4}

Count, using printf to avoid new-line?

awk '{for (i=1; i

So many ways, the best one depends on the exact problem to solve.

hth,
Hein.

Re: awk problem

Peter Godron — Tue, 14 Nov 2006 08:04:58 GMT

Declan,
and my awk solution:
awk '{print $1,$2=substr($0,length($1)+1)}' datafile

Which prints the first field and then works out the string to print for field to by taking the whole line ($0) and moving the start point to print just past the length of the first field. The end point is the end of the line.

Re: awk problem

Declan Heerey — Tue, 14 Nov 2006 08:17:24 GMT

Thanks for all the replies, i'm going to test each one now and will update the thread when i've finished (and i'll assign points)

Thanks again

Declan

Re: awk problem

Declan Heerey — Tue, 14 Nov 2006 08:29:50 GMT

Wey hey thanks to all, as you can guess they all work in there own right but the variation i have used is based on Peter's reply

awk '{print$2=substr($0,length($1)+1)}' datafile.txt

Thanks again to everyone

Regards

Declan