CODEWITHSUNDEEP
linuxbashscriptingawk
siamese3
siamese3

Reputation: 35

awk script to process 400 .txt files

I have a nice .awk script that takes the 2nd $2 value and prints it. Because the data in the .txt files only go down 8192 lines, any lines after that are irrelevant (the script takes care of that.) I have 400+ .tst files that need to have the same thing done and have the ouput's placed into a single file. So how would I go through every .tst file in the current directory? I tried piping the cat output to a single line version of the script but it only processed the first file. Any suggestions?

BEGIN{
}
{
print $2 "\n";
if (NR==8192)
        exit;
}
END {
    print NR "\n";
}

Upvotes: 1

Views: 179

Answers (2)

Chris Seymour
Chris Seymour

Reputation: 85865

Just glob all the .tst files in the current directory and redirect the output to outfile:

$ awk 'FNR<=8192{print $2"\n";next}{print FNR"\n";nextfile}' *.tst > outfile

Upvotes: 1

jaypal singh
jaypal singh

Reputation: 77145

This should work - 

awk 'FNR<=8192{ print $2 }' *.tst > finalfile

Upvotes: 3

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