> A (real) example of the above would be (assuming original file contains
> 10000 lines, and needs splits of 2000, 3000, 3000 and 2000):
>
>
> head -n 2000 original > result1
> tail -n 8000 original > temp1
> head -n 3000 temp1 > result2
> tail -n 5000 temp1 > temp2
> head -n 3000 temp2 > result3
> tail -n 2000 temp2 > result4
>
> The above will work, but leaves temp files potentially all over the
> place (temp1 and temp2). If necessary, I can do that. But it would be
> better to create the exact "chunks" from a file without any extra files
> lying around.
If you wanted to avoid files you could do some head/tail pipery, but
sed can accomplish the same thing:
sed '1,2000!d' original > result1
sed '2001,5000!d' original > result2
sed '5001,8000!d' original > result3
sed '8001,10000!d' original > result4
in a nutshell, delete (d) every line that is not (!) in the line range
specified.
The opposite works too... like sed -n '2001,5000p' original ...
disable autoprint (-n), print (p) the line range specified.
~ Daniel
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