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/

　f 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 *