eval tells me:
In both forms, the value returned is the value of the last expression evaluated inside the mini- program; a return statement may be also used, just as with subroutines. The expression providing the return value is evaluated in void, scalar, or list context, depending on the context of the eval itself. See the wantarray entry elsewhere in this document for more on how the evaluation context can be determined.
So you can get the return with $ret = eval ....

If you want to execute a shell, use system with redirection: 

$ret = system('perl','return.pl',">$tmp_stdout","2&>$tmp_stderr");

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Jeroen
"We are not alone"(FZ)

In reply to Re: once again: program output and return code by jeroenes
in thread once again: program output and return code by particle

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