Re: Re: Line Numbers

[BazB]

in reply to Re: Line Numbers
in thread Line Numbers

Actually $0 is the currently executing program, which varies system to system. See perlvar for more detail.

On Solaris 8, it's likely to be something like /usr/bin/perl /path/to/perl/script, not at all like the filename given by warn or die.
On Linux (or at least this Linux box) it is the script name.

Update: Correction; after re-reading perlvar myself, it states "$0...Contains the name of the file containing the Perl script being executed".
However, my comment about it varying OS to OS stands.

Update 2: I am an idiot. I've double checked, following vek's post (++); he's quite right. $0 does exactly as advertised.
All I need to do now is remember where I saw a script reported as I originally and incorrectly reported - ps probably. *Sigh*

[vek]

Actually on Solaris 8 it's just /path/to/perl/script.

#!/usr/bin/perl

print $0, "\n";

Prints /path/to/perl/script on Solaris 6, 7, 8, 9 - I just ssh'd into work to test it out :-)