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no data redirected to a file with top and grep - why?

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Top Forums Shell Programming and Scripting no data redirected to a file with top and grep - why?
# 15  
Old 04-24-2008
The problem is that grep does not write the result immediately. If you quit it before the first result has been written, the output file will still be empty. Run it without caching if you have a grep which has that option, or just live with the fact that the last buffer (probably something like 4k to 8k) might be lost when you quit it.

Did you miss comment #10 or did you not understand it?
# 16  
Old 04-24-2008
OKie, got it work with --line-buffered option in grep.
Sorry, I was not carefully read it.

a million thanks!
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