Standard C Library (libc, -lc)

The getusershell function returns a pointer to a valid user shell as defined by the system manager in the shells database as described in shells(5). If the shells database is not available, getusershell behaves as if /bin/sh and /bin/csh were listed.

The getusershell function reads the next line (opening the file if necessary); setusershell rewinds the file; endusershell closes it.

• /etc/shells

The routine getusershell returns a null pointer (0) on EOF.

nsswitch.conf(5), shells(5)

The getusershell function appeared in

The getusershell function leaves its result in an internal static object and returns a pointer to that object. Subsequent calls to getusershell will modify the same object.