2.9BSD/usr/man/cat2/unlink.2

UNLINK(2)           UNIX Programmer's Manual            UNLINK(2)

NAME
     unlink - remove directory entry

SYNOPSIS
     unlink(name)
     char *name;

DESCRIPTION
     _U_n_l_i_n_k removes the entry for the file pointed to by _n_a_m_e
     from its directory.  If this entry was the last link to the
     file, the contents of the file are freed and the file is
     destroyed.  If, however, the file was open in any process,
     the actual destruction is delayed until it is closed, even
     though the directory entry has disappeared.

ERRORS
     _U_n_l_i_n_k will succeed unless:

     [EINVAL]            The path name contains a non-ASCII byte.

     [ENOTDIR]           A component of the path prefix is not a
                         directory.

     [ENOENT]            The named file does not exist.

     [EACCES]            Search permission is denied for a com-
                         ponent of the path prefix.

     [EACCES]            Write permission is denied on the direc-
                         tory containing the link to be removed.

     [EPERM]             The named file is a directory and the
                         process's effective user ID is not the
                         super-user.

     [EBUSY]             The entry to be unlinked is the mount
                         point for a mounted file system.

     [EROFS]             The named file resides on a read-only
                         file system.

     [EFAULT]            _N_a_m_e points to an address outside the
                         process's allocated address space.

     [ELOOP]             Too many symbolic links were encountered
                         in translating the path name.

SEE ALSO
     rm(1), link(2)

ASSEMBLER
     (unlink = 10.)

Printed 5/23/83                                                 1

UNLINK(2)           UNIX Programmer's Manual            UNLINK(2)

     sys unlink; name

Printed 5/23/83                                                 2