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Full Discussion: Splitting data file
Top Forums Shell Programming and Scripting Splitting data file Post 60008 by Ygor on Thursday 6th of January 2005 09:06:29 PM
Old 01-06-2005
Assuming that the header is the first line of the input file...
Code:
awk -v rows=3 -v filespec=outfile%03d '
    NR == 1 { 
        header = $0
        next
    }
    (row++ % rows) == 0 { 
        close(filename)
        filename = sprintf(filespec, ++filecount)
        print header > filename
    }
    {print $0 > filename}
' infile

Tested...
Code:
$ head infile outfile???
==> infile <==
h1
d1
d2
d3
d4
d5
d6
d7

==> outfile001 <==
h1
d1
d2
d3

==> outfile002 <==
h1
d4
d5
d6

==> outfile003 <==
h1
d7

 

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