env SSH_AUTH_SOCK=$SSH_AUTH_SOCK inner_script.sh 

##</code><code>##

my $command="rdist $RDIST_OPTIONS"; 
open(RDIST, "$command 2>&1 |" ) || 
die("$basename: Unable to open $command\n"); 

my $errorcount = 0; 
while ( <RDIST> ) { 
... some other commands/conditional statements ... 
}