[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: What is the difference between > and >> in a makefile.
From: |
Stephan Beal |
Subject: |
Re: What is the difference between > and >> in a makefile. |
Date: |
Mon, 28 Mar 2011 22:38:22 +0200 |
On Mon, Mar 28, 2011 at 10:31 PM, givemecode <address@hidden> wrote:
> Stephan - I have more more question: why does append (>>) need to open in
> truncate mode first? Isn't truncate mode deleting the contents of the file?
> append shouldn't delete but well, append. thanks!!
>
The >> doesn't cause two opens, but using:
echo abc > x
echo def >> x
causes two opens. By wrapping it in a scope, and redirecting the scope, we
can avoid the >> operator and do a single open.
--
----- stephan beal
http://wanderinghorse.net/home/stephan/
Re: What is the difference between > and >> in a makefile., givemecode, 2011/03/28