If your tooling depends on the value of $0, note that $0 can be changed. 
{
    local $0 = 'my program';
    print $0;     # my program
    system 'ps';  # <- works even here, at least on my Linux box.
}
print $0;     # Back to the old values.
system 'ps';  # ditto

[download]
map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

In reply to Re: $0 inconsistency? by choroba
in thread $0 inconsistency? by misterperl

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