hybrid 7 in Crontab

[Simos]

I've found crontab info for hybrid 7 on irchelp.org , i've try to use that 
perl script :

#!/usr/bin/perl
system('/home/ircd/hybrid/bin/ircd') if ( ! `ps -aef|grep -v grep|grep ircd);

I've try to run it my self to test but it don't work any suggestion ?
Sorry for my bad english.

Best Regard 
Simos