AIX 3 /etc/security/passwd !

　　or /tcb/auth/files/
　　of username>/

A/UX 3.0s /tcb/files/auth/?/*

BSD4.3-Reno /etc/master.passwd *

ConvexOS 10 /etc/shadpw *

ConvexOS 11 /etc/shadow *

DG/UX /etc/tcb/aa/user/ *

EP/IX /etc/shadow x

HP-UX /.secure/etc/passwd *

IRIX 5 /etc/shadow x

Linux 1.1 /etc/shadow *

OSF/1 /etc/passwd[.dir　.pag] *

SCO Unix #.2.x /tcb/auth/files/
　　of username>/

SunOS4.1+c2 /etc/security/passwd.adjunct ##username

SunOS 5.0 /etc/shadow

System V Release 4.0 /etc/shadow x

System V Release 4.2 /etc/security/* database

Ultrix 4 /etc/auth[.dir　.pag] *

UNICOS /etc/udb *

Windows2000 C:/winnt/system32/config/sam