.Nd verifies user password against various systems
.Sh SYNOPSIS
.Nm chkpasswd
-.Op Fl i Ar infosystem
-.Op Fl l Ar location
+.Op Fl i Ar infosystem Op Fl l Ar location
.Op Fl c
.Op Ar name
.Sh DESCRIPTION
.\" ==========
.It Fl i Ar infosystem
Specify the system against which to check the password
-(default is OpenDirectory). Valid systems:
+(default is PAM). Valid systems:
.Bl -tag -width "opendirectory"
.It Ar file
File-based passwords
If no
.Fl l
option is specified, the search node is used.
+.It Ar PAM
+Pluggable Authentication Modules
.El
.Pp
.\" ==========
NIS domainname.
.It for opendirectory
A directory node name such as /Local/Default.
+.It for PAM
+Unused.
.El
.Pp
.El