Unknown option: help
Usage: finger [options] [name]
Options:
  -l    Search in Login names
  -f    Search in Fullnames
  -o    Search in Room, Phone and Other info fields
  -p    Search in Projects and Plans
  -d    Search in group descriptive texts
  -x    Exact match
  -u    Search only users
  -g    Search only groups
If no option given, search in Login, Fullnames and Descriptions.