Re: using perl to format tail -f

One way is to open 'tail -f' as a 'read-from' filehandle within your script, as documented in perlopentut.

open Tail, '/usr/bin/tail -f /my/log/file |' or die "Pipe failed: $!\n
+";
while (<Tail>){
    # Do stuff
}
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-- 
Human history becomes more and more a race between education and catastrophe. -- HG Wells

Comment on Re: using perl to format tail -f Download Code

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Re^2: using perl to format tail -f by MidLifeXis (Monsignor) on Apr 14, 2008 at 17:47 UTC
IIRC, on some platforms, "tail -f" may buffer the output so that you will get batches of output rather than real-time output. This is only on some platforms, and other versions will have a flag to disable buffering. Just a tidbit that may effect your results. --MidLifeXis	[reply]