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Re: tail -f <file name> locks <file name>


On Tue, 27 Apr 1999 thomas@on.com wrote:

> This has not been the original intention of 'tail -f': This command should
> enable the user
> to watch the contents of a file grow. If this file is locked by the tail
> command, the writing process
> will run on error.
> 

I'm not sure why you're seeing a problem, but I do the following all the
time:
  
  $ make > make.log 2>&1 &
  $ tail -f make.log

And in some cases, the ``tail -f make.log'' is already running in a
different window when I issue the ``make'' command.

Is the writer explicitly locking the output file? Could you show an 
example of the failure? 

Regards,
Mumit



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