NAME
basename —
return the last component of a
pathname
LIBRARY
library “libc”
SYNOPSIS
#include
<libgen.h>
char *
basename(char
*path);
DESCRIPTION
Thebasename()
function takes the pathname pointed to by path and
returns a pointer to the final component of the pathname, deleting any
trailing ‘/’ characters.
If path consists entirely of
‘/’ characters,
basename()
returns a pointer to the string “/”.
If path is a null pointer or
points to an empty string,
basename()
returns a pointer to the string “.”.
RETURN VALUES
The basename() function returns a pointer
to the final component of path.
SEE ALSO
STANDARDS
- X/Open Portability Guide Issue 4, Version 2 (“XPG4.2”)
- IEEE Std 1003.1-2001 (“POSIX.1”)
BUGS
If the length of the result is longer than
PATH_MAX bytes (including the terminating nul), the
result will be truncated.
The basename() function returns a pointer
to static storage that may be overwritten by subsequent calls to
basename(). This is not strictly a bug; it is
explicitly allowed by IEEE Std 1003.1-2001
(“POSIX.1”).