[comp.unix.i386] passwd file maint utilities - shadowing

aland@infmx.UUCP (Dr. Scump) (03/06/90)

Several questions related to the shadow passwd file (/etc/shadow):

1) which versions of UNIX use it by default?  With which version did
   shadowing begin - SVR2?  SVR3?  SVR3 Rel 3.2 ?  other?  Is it
   the same for AT&T and other System V vendors?

2) with those versions which use shadowing by default -- can it be
   turned "off" just by removing /etc/shadow and restoring passwords
   to /etc/passwd?

3) do shadowing UNIX versions all use the same utilities?  The only
   ones that I am familiar with are AT&T's (adduser, deluser, passmgmt).
   Do the other vendors use the same utility names and parameter usage?

4) also, is there a way to *set* a passwd from a script?  /bin/passwd
   seems to insist on interactive use.  I can remove a passwd (via
   /bin/passwd -d username) but not set one, as far as I can see.
   I checked everywhere in TFM that I can think of.

Thanks in advance.   Followups to comp.unix.questions.

--
Alan S. Denney # Informix # aland@informix.com # {pyramid|uunet}!infmx!aland
 CAUTION: Objects in terminal are closer than they appear...
 Disclaimer: These opinions are mine alone.  If I am caught or killed,
             the secretary will disavow any knowledge of my actions.

 "These tests will have no effect on your grades.  They will merely
  determine your future social status and financial success, if any."