.\" Copyright (c) 1985 The Regents of the University of California.
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.\" @(#)getusershell.3 6.3 (Berkeley) %G%
getusershell, setusershell, endusershell \- get legal user shells
returns a pointer to a legal user shell as defined by the
system manager in the file
is unreadable or does not exist,
line (opening the file if necessary);
returns a null pointer (0) on EOF.
is contained in a static area
so it must be copied if it is