convert the below perl sript to shell script

Shell Programming and Scripting
1

perl script:

my $logdir = '/smp/dyn/logfiles/fsm/mp/mp';
$logdir = $logdir ."/mp${toDate}*";

i tried to make it..as below .. but not working ..

date +%m%d%y
logdir = /smp/dyn/logfiles/fsm/mp/mp
logdir=$logdir/mp"$date"

but it was not working.....
can someone please help me out in this..

2 
#!/bin/ksh

toDate=$(date +%m%d%y)
logdir='/smp/dyn/logfiles/fsm/mp/mp'
logdir="${logdir}/mp${toDate}"