Command help

[nathan nolast]

nice, all great answers
i appreciate it.


On Thu, Aug 11, 2011 at 2:18 AM, Jordon Bedwell <jordon at envygeeks.com>wrote:

> On Wed, August 10, 2011 10:18 pm, nathan nolast wrote:
> > can someone please inform me how this works
> >> filename.txt
> > this emptys the file but i cant find what > is doing, what is >
>
> It's called stdio redirection or some (well actually a lot of) people just
> call it I/O redirection.  You can redirect stdin and you can redirect.  <<
> < stdin stdout > >>, the proper way to truncate a file is actually ">
> file.txt" or ":> file.txt" and nothing more, no echo, with an echo of any
> kind you always end up with at least 1 byte written to the file which
> defeats the purpose of what you are trying to do if you want to down and
> dirty about it.
>
> http://tldp.org/LDP/abs/html/io-redirection.html
>
>
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-- 
Thank you for your time
~Nathan
nathan1465 at gmail.com

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