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10-23-2002
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using tail -f
Working in HP-UX 10.20. I eventually want to write a bourne shell script to handle the following problem, but for now I am just toying with it at the command line.
Here's what I am basically trying to do: tail -f log_X | grep n > log_Y I am doing a tail -f on log_X . Once it sees "n", I would like for it to grep it, then put it into log_Y. It ain't making it to log_Y. I have been manually adding "n" to log_X, and the tail command is definitely seeing it, but it fails to pass it to log_Y. Why? Is it because the command is trying to "complete" the tail -f before it executes the > (redirect) to log_Y?? Is there a better way to appraoch this? TYIA |
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