Re: Simple Unix utility?

[Torsten Hilbrich <Torsten.Hilbrich@bln.de>]

Jim Pick <jim@jimpick.com> writes:

> Now I notice that "cut" seems to buffer everything up.
> 
> $ tail -f /opt/linuxhq/livesite/var/log/access.log |  grep -v "gif" | cut -c1-175
> 
> Is there another way around that?

cut doesn't buffers everything, grep is to blame.  If grep output to a
non-terminal (e.g. a pipe) it use buffers of 4k (don't remember the
correct value).  Unfortunatly, I don't know any way to get around
this.  Maybe you can use awk (or perl) to combine the functionality of
grep and cut in the above line.

BTW: A parameter to every program enforcing line-buffering instead of
block-buffering would be great. In this case grep would be called with
this parameter and everything works fine again.

        Torsten

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