What error does it "throw"?

Without you providing the error message, it's kinda hard to guess, but I'm trying:

The string:

$Src_Cmd = "srvrmgr – g $GATEWAY –e $ENTERPRISE_SERVER –s $USER –p $PA
+SSWD –c Run Task for comp $SYSTEM_NAME processName=\"UDA Batch  Deplo
+yment\", "RowId=$row_id";
[download]

has unbalanced/unquoted double quotes. Perl even tells you that there is an error in the first line. I suggest using the qq operator instead:

$Src_Cmd = qq{srvrmgr – g $GATEWAY –e $ENTERPRISE_SERVER –s $USER –p $
+PASSWD –c Run Task for comp $SYSTEM_NAME processName="UDA Batch  Depl
+oyment", "RowId=$row_id"};
[download]