command line tools and $PATH

[tgate]

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I'm going step by step through some of the learning material on line and
I'm a bit confused by some of my results.

I'm following this (A First Tool):
http://www.gnustep.it/nicola/Tutorials/WritingMakefiles/node2.html

the source code (test.m):

#import <Foundation/Foundation.h>

int
main (void)
{
  NSLog (@"This is the TEST program");
  return 0;
}


when I compile and install, if I enter the full path the tool works
fine, however if I only specify the tool without the path nothing returns.

%> which test
./test
%> test
%> ./test
2006-11-13 11:12:13.664 test[18076] This is the TEST program


why do I need to put in the full path?
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