Updating parameter file with date?

[Mishe]

Hi-

I am trying to update my parameter file (Unix) with the 'session start date'. I am doing this via a Post-session success command.

This is what I have working:

cd $PMSourceFileDir/SLXinterface;
cp param.txt param.old;
echo [IS.s_M_SLXinterface] > param.txt;
echo \$\$lastRunTime= >> param.txt;

I just need the session start time inserted as my lastRunTime value. I would like the format of last line to be:

$$lastRunTime=10/15/2004 00:00:00

I have tried using $SESSSTARTTIME, \$SESSSTARTTIME, and SESSSTARTTIME with no luck.

Any ideas?

Thanks!