5.5. Wildcard Printcap Entry

If you specify a printcap name or alias as * (wildcard), then if the LPRng system cannot find a printcap with the exact name then the first matching wildcard will be used. For example:

pr|*:rm=server
  lpr -Ppr2 will match, and result in a printcap entry
    pr|pr2:rm=server

*|pr:rm=server
  lpr -Ppr2 will match, and result in a printcap entry
    pr2|pr:rm=server