Re: Dumb path question

[Doug McNutt]

At 20:25 +0000 3/10/09, John Delacour wrote:
At 21:10 -0600 9/3/09, Doug McNutt wrote:

At 22:24 -0400 3/9/09, Chris Devers wrote:
How can a Perl script reliably, portably resolve the path inside which
it is running?...

$0  That's a zero.  Has always worked for me to produce a full path 
to a running perl script.

...There is a module "cwd"...

or rather Cwd.  $0 will give the name but not the full path, so I'd suggest
the following:

#usr/bin/perl
use Cwd;
my $currentdir = cwd();
print "$currentdir/$0\n";

Interesting.  It turns out that I rarely call a stored perl script 
without specifying a full path in the call. I'm getting a full path 
in $0 when I do that. There may be more to think about.  The stuff I 
just checked calls the script itself which has been made executable 
rather than making a call to perl with the argument being the path to 
the script. I also don't know about a stored script placed in a 
directory that's included in $PATH but is not in $PWD.

"portable" seems to be the key here.  Modules good for that.

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