Shell Programming and Scripting

Hey,

I know this is a stupid question, but it doesn't work.
I have a file with 10 lines and I want to pipe the content to awk and then print line 1 til 2 into another file and then line 3-4 ...

So my script looks like that, but doesn't work:

Code:

cat grid_ill.pts | awk '{
for (NR=1;NR<3;NR++) {
    print $1, $2, $3, $4, $5, $6 >> "grid_ill_1.pts"}
for (NR=3;NR<5;NR++) {
    print $1, $2, $3, $4, $5, $6 >> "grid_ill_2.pts"}
}'

I guess it doesn't work with NR, but does someone has an idea?
Thanks for any help,
Sam

Code:

nawk '{f+=(FNR%2); print >> ("grid_ill_" f ".pts")}'grid_ill.pts

First, in 99% of cases you don't wanna change NR during AWK execution. Second:

Code:

awk 'NR<=2{print >> "grid_ill_1.pts";next}{print >> "grid_ill_2.pts"}' grid_ill.pts

yes, thats the problem, but a normal variable in a for-loop cannot adress the NR. Or better to say: I don't know how.

But how can I control from line 2 til line 4 do print with one of these solutions? (In reality the file consists 70 million lines and I have to seperate it into 600000 lines per new file)
Because the nawk-version is writing only writing one line into one file...

Thanks for your help

Perhaps a simple split command will do the trick: Man Page for split (POSIX Section 1) - The UNIX and Linux Forums

Regards,
Alister

juchuuuu. Yes. Works fine and is really cool. I didn't know this command.

Thanks a lot.
Sam

The "nawk-version" should write 2 lines/records per output file.
You can control the number of lines/records per file with 'FNR%2'