From: Julius Szelagiewicz (julius@turtle.com)
Date: Mon Jun 17 2002 - 10:02:53 EDT
Dear Admins,
i got 2 excellent answers from James Sohr and Lutz Sommerfeld,
i'll quote Lutz's as the summary.
the original problem:
I need to process a file that comes to a script through a pipe. i
need to do things to the lines 10+ based on content of lines 1 to 9. the
file may be rather large and i'd like to avoid creating temporary file. is
there a way to grab first 9 lines with one command and pass the rest to
another?
> -----
> #!/usr/bin/ksh
>
> head=""
> typeset -i num
> num=0
>
> echo "Lines 1-9 of stream:"
>
> while [ $num -le 9 ]
> do
> read line
> echo $line
> head="$head\n$line"
> num=$num+1
> done
>
> echo "\nThe whole file:"
>
> echo $head | tail +2 # Get rid of "\n" in first line
> while read line
> do
> echo $line
> done
>
> ---------
--
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