parted is ALMOST suitable

[Richard Owlett <rowlett@cloud85.net>]

I need to identify file system on all partitions of my hard drive 
whether mounted or not.
    parted /dev/sda print | grep ext | grep -v exte
reports the desired information [partitions formatted ext?] in a 
convenient format.
*HOWEVER* parted requires root privileges. That is not acceptable.
Suggestions?
TIA