term% cat index.txt UNLINK(2) System Calls Manual UNLINK(2)
NAME
unlink - remove directory entry
SYNOPSIS
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 ac‐
tual destruction is delayed until it is closed, even though the direc‐
tory entry has disappeared.
SEE ALSO
rm(1), link(2)
DIAGNOSTICS
Zero is normally returned; -1 indicates that the file does not exist,
that its directory cannot be written, or that the file contains pure
procedure text that is currently in use. Write permission is not re‐
quired on the file itself. It is also illegal to unlink a directory
(except for the super-user).
ASSEMBLER
(unlink = 10.)
sys unlink; name
UNLINK(2)