perlquestion david2008 Hi all, <p> I have a group of scripts a.pl ... n.pl.<br> In each of these script i have section which makes a certain reset of the data base and then make a run.<br> When 2 of these scripts run together i get a messy result.<br> How can i restrict that just one process runs at a time ?<br> It would be sufficient for me that when a.pl runs and i try to run b.pl, that b.pl will die.<br> How can i achieve this ?<br> </p> Thanks, David