Is it possible to use linux console command with epic perl for example:

#!/usr/bin/perl  -w
my $today = `date +%y%m%d`;
print $today;

I use perl installed with cygwin and I want to have access to linux commands like rm, mv, cp, date and so on but I get error while running it: Can't exec "date": No such file or directory at /cygdrive/c/Documents and Settings/Jarek/workspace/ line 12.