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Old 12-12-2003, 05:02 PM   #1
Registered: Nov 2003
Location: Dallas, TEXAS
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Question I there a way to tell awk to select rows instead of collums

I am trying to get awk to display multi lines (rows)
I know that $1 will select the column one but how do I tell the awk to select multi rows like to print lines 4-8.
Is there a way to do that?
Or do you have to use sed?
Old 06-14-2004, 09:59 AM   #2
Registered: Jul 2003
Location: Geneva, Switzerland
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You can simply use the built-in variable for row number in awk, NR, in a script like this:

touch newfile
for i in 4 5 6 7 8
awk -v a=$i 'NR==a {print $0}' file >> newfile

This script will do a loop on the lines you want to print (here 4 5 6 7 8), tell awk to associate the shell variable i to its own variable a and print the complete line ($0) of file into newfile. The -v option allows you to give values to awk's variable. The touch statement creates the newfile and the redirection symbol >> append lines into the newfile instead of overwriting them.
Old 06-14-2004, 11:58 AM   #3
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Adapt to suit your needs:
awk '(NR > 3 && NR < 9) {print $0}' file


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