I'll go back and make the changes you suggested. I thought I used the exact syntax for Printer stated in the documentation.

Here's the kicker, it's not always failing. Even though I'm explicitly setting ENV{PATH} in all 3 files, every 3 or so times the script runs, it somehow resets the ENV{PATH} to the original value. Only when I explicitly reset it right before it fails in Printer::Unix.pm does it get the correct ENV{PATH}. 

$ENV{PATH}='/usr/bin';
warn "path=$ENV{PATH}\n";
open PRINTER, "| $self->{print_command}->{linux}-{command}"
    or Carp::croak..

[download]
...And then it will again randomly fail (more like every 6th running instead of every 3rd), with the new error Can't open printer connection to lp -d 6L.

ETA: However, if my code is: 

warn "path=$ENV{PATH}\n";
open PRINTER, "| $self->{print_command}->{linux}-{command}"
    or Carp::croak..

[download]
(without the redundant 4th reset of ENV{PATH}), sometimes the warning output shows the correct PATH, sometimes, it doesn't.

In reply to Re^4: Taint error in Printer module by ksublondie
in thread Taint error in Printer module by ksublondie

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