redirect stderr to a file, or devnull (File::Spec->devnull();) something like 
require File::Spec;
my $devnull = File::Spec->devnull();
my $cmd = `cleartool ls -l $fname 2>$devnull`;

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In reply to Re: backticks are echoing stderr by Anonymous Monk
in thread backticks are echoing stderr by nsteiner

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