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Re: grep | sed do not function inline?



Am 2007-04-23 11:32:53, schrieb Greg Folkert:
> Tyler, look at what "tail -f" it means (basically):
> 
>         -f, --follow[={name|descriptor}]
>             output appended data as the file grows; -f, --follow, and
>             --follow=descriptor are equivalent
> 
> Which mean it will sit watching the file/file-descriptor for appended
> output and stay attached "forever" until broken out of.
> 
> I've used it for years as part of my "watch for certain things in the
> logs" scripts.

"tail" output by default only the last 10 line and then continue
to output stuff which is written ito the file.  So if you have a
file with 1000 line it will drop 990 lines, output the last 10 and
then wait for further input.

What you want is something like

tail -n XXX -f <file>

where XXX is a number equal or bigger as the lines in the <file>

Thanks, Greetings and nice Day
    Michelle Konzack
    Systemadministrator
    Tamay Dogan Network
    Debian GNU/Linux Consultant


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