HP-UX Reference (11i v3 07/02) - 4 File Formats (vol 8)

p
passwd(4) passwd(4)
/etc/shadow Shadow password file.
SEE ALSO
chfn(1), chsh(1), finger(1), login(1), passwd(1), pwck(1M), pwconv(1M), useradd(1M), a64l(3C), crypt(3C),
getpass(3C), getpwent(3C), getprpwent(3), authcap(4), shadow(4), limits(5).
STANDARDS CONFORMANCE
passwd: SVID2, SVID3, XPG2
306 Hewlett-Packard Company − 4 − HP-UX 11i Version 3: February 2007