02-02-2006
Loop for file existence
I wasn't sure if I should post it here of in the Shell Script category, but I figured it was definitely a newbie question.
I'm trying to write a script that will check for the existence of a specific file (or for any files within the directory) and then take specific actions. I've removed all the extra processing in the loop, comments, and variables. I'm just trying to get my basic loop to work.
I did check the FAQ's but I think this is even too basic a question for there. Anyone's assistance with this would be appreciated.
#!/bin/sh
if (test.dat exists in current directory)
then
echo "test.dat exists!" |mail
noone@domain.com
else
echo "test.dat does not exist!" |mail
noone@domain.com
fi
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sage(3) Library Functions Manual sage(3)
NAME
sage - The SDL library for OpenGL extensions.
DESCRIPTION
#include <sage/sage.h>
Sage is a small C library providing Open GL extensions to applications using SDL. It has been automatically generated from the glext.h
header file from the OpenGL website. The Sage source package comes with the Perl scripts to generate new sources from updated glext.h
files.
Additionally, it provides a way of accessing the standard GL and GLU headers in a cross platform method. sage/GL.h and sage/GLU.h should be
used in place of gl/GL.h and gl/GLU.h (or the equivalent on other platforms.)
To use Sage, an application must first call sage_init once the OpenGL context has been created. This checks for the existence of each
extension it knows about and links up the appropriate function pointers. The array sage_ext sets each exension that is found to 1, and 0
otherwise. Applications should check the existence of the extension in sage_ext before using it.
Extensions can then be used by their name as defined in the spec.
BUGS
Sage does not check to see of the OpenGL context is valid.
On some systems, the standard Open GL header causes problems with sage (namespace conflicts).
Apparently some broken GL implmentations may report the existence of an extension, but not actually provide it. Sage will not detect this.
AUTHOR
Simon Goodall (simon (at) simongoodall.co.uk)
SEE ALSO
sage_init(3)
September 22, 2005 sage(3)