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UNLINK(II)                   8/5/73                    UNLINK(II)







NAME

     unlink - remove directory entry



SYNOPSIS

     (unlink = 10.)

     sys  unlink; name



     unlink(name)

     char *name;



DESCRIPTION

     Name points to a null-terminated string.  Unlink removes the

     entry  for  the  file pointed to by name 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.



SEE ALSO

     rm(I), rmdir(I), link(II)



DIAGNOSTICS

     The error bit (c-bit) is set to indicate that the file  does

     not  exist  or  that its directory cannot be written.  Write

     permission is not required on the file itself.  It  is  also

     illegal  to  unlink a directory (except for the super-user).

     From C, a -1 return indicates an error.