how do i rename a file and include the date and time as exensions 1

[helentps]

I have a script to rename particular files in my system and currently the script puts a program id number at the end of the file name and i'd like to put the date and time instead. So instead of my file being something like 1234.asc.58500 i'd like it to be 1234.asc.20050320.135400
What command can i use to accomplis that?? Currently I am using:
rn 1234.asc 1234.asc$$

thanks for your help!!

 

[kHz]

man date to find the correct syntax but it would be something like:

1234.asc.$(date +%y%m%d).$(date +%T)

 

[helentps]

thanks!! that worked like a Charm!