If it needs to be a reference to a scalar (as it appears it does), then you want this:

my $processor = \`/aa/bin/get_pbind_cpus.ksh`;
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That's kind of odd, however. I'd look at the other usages to see if they really are passing in a scalar reference. I'm not saying it's impossible, but I find it strange since there isn't really any advantage to passing in a reference rather than the variable itself.

# borrowing from [kyle]'s translation, 
# at program beginning
my %proc_id;

system("$os_cmd_table{$^O}{pbind} -b $processor $$proc_id{$_} >/dev/nu
+ll 2>&1") if defined $processor;
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I tried out kyles suggestion of putting a '\' before the $processor but got the error message

 Processor is SCALAR(0x15f1a8) and qmgr is QM_P266 
 In bind_cpu_solaris , Processor is SCALAR(0x15f1a8) 
 In for loop ...
 In Next Loop ...
/usr/sbin/pbind: must specify at least one pid
usage: 
        /usr/sbin/pbind -b processor_id pid[/lwpids] ...
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The processor variable is populated in one other location where it looks for pid's of other processes already bound to a specific processor and tries to bind to the same (i.e populate $processor with the same proocessor id). the code is like the below:

sub get_cpu_used_by_other_processes
{
        my $other_process = shift;
        my $proc_id = locate_process_id( $other_proc );
        my $processor = undef;
        my $pid = undef;

        my @cmd_output = `$os_command_table{$^O}{pbind} -q 2>/dev/null
+`;
        die "ERROR:failed to retrieve the bound processors\n" unless (
+ $? == 0 );
        ##### increase the weight of processors based on used or not #
+####
        foreach ( keys %{$proc_id} )
        {
                $pid = $$proc_id{$_};
                next unless defined $pid;
                foreach ( @cmd_output )
                {
                        $processor = $1, return \$processor if /proces
+s\s+id\s+${pid}\s*:\s*(\d+)
$/;
                }
        }
}
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I tried out kyles suggestion of putting in the '/' before the 4processor but get the error message:

after call to bind cpu:WARNING:failed to bind process xxxxa0 PID 3720 
+to processor SCALAR(0x15f1a8)(rcode 256)
/usr/sbin/pbind: must specify at least one pid
usage: 
        /usr/sbin/pbind -b processor_id pid[/lwpids] ...
        /usr/sbin/pbind -U [processor_id] ...
        /usr/sbin/pbind -Q [processor_id] ...
        /usr/sbin/pbind -u pid[/lwpids] ...
        /usr/sbin/pbind [-q] [pid[/lwpids] ...]
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The processor variable is populated in one other method too before the bind_cpu is invoked. In this case it looks for other processes and binds to the the same processor:

sub get_cpu_used_by_other_process
{
        my $other_mgr = shift;
        my $proc_id = locate__process_id( $other_mgr );
        my $processor = undef;
        my $pid = undef;

        my @cmd_output = `$os_command_table{$^O}{pbind} -q 2>/dev/null
+`;
        die "ERROR:failed to retrieve the bound processors\n" unless (
+ $? == 0 );
        ##### increase the weight of processors based on used or not #
+####
        foreach ( keys %{$proc_id} )
        {
                $pid = $$proc_id{$_};
                next unless defined $pid;
                foreach ( @cmd_output )
                {
                        $processor = $1, return \$processor if /proces
+s\s+id\s+${pid}\s*:\s*(\d+)
$/;
                }
        }
}

}
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OK, get_cpu_used_by_other_process really is returning a reference to a scalar. That being the case, I guess you really do need to use the backslash as I suggested in Re^3: converting from string to SCALAR when using strict "refs".

my $processor = \`/aa/bin/get_pbind_cpus.ksh`;
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However, you might need to chomp that before doing anything with it because the backticks will give you a newline at the end of the value you're interested in.

chomp( $$processor );
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Then your offending line 325 can be what you had originally.

system("$os_cmd_table{$^O}{pbind} -b $$processor $$proc_id{$_} >/dev/n
+ull 2>&1") if defined $$processor;
[download]

I hope that helps.