basename(3p) [centos man page]

BASENAME(3P)						     POSIX Programmer's Manual						      BASENAME(3P)

PROLOG

       This  manual page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (consult the correspond-
       ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

NAME

       basename - return the last component of a pathname

SYNOPSIS

       #include <libgen.h>

       char *basename(char *path);

DESCRIPTION

       The basename() function shall take the pathname pointed to by path and return a pointer to the final component of  the  pathname,  deleting
       any trailing '/' characters.

       If  the string consists entirely of the '/' character, basename() shall return a pointer to the string "/" . If the string is exactly "//",
       it is implementation-defined whether '/' or "//" is returned.

       If path is a null pointer or points to an empty string, basename() shall return a pointer to the string "." .

       The basename() function may modify the string pointed to by path, and may return a pointer to static storage that may then  be  overwritten
       by a subsequent call to basename().

       The basename() function need not be reentrant. A function that is not required to be reentrant is not required to be thread-safe.

RETURN VALUE

       The basename() function shall return a pointer to the final component of path.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

   Using basename()
       The following program fragment returns a pointer to the value lib, which is the base name of /usr/lib.

	      #include <libgen.h>
	      ...
	      char *name = "/usr/lib";
	      char *base;

	      base = basename(name);
	      ...

   Sample Input and Output Strings for basename()
       In the following table, the input string is the value pointed to by path, and the output string is the return value of the basename() func-
       tion.

							     Input String     Output String
							     "/usr/lib"       "lib"
							     "/usr/"	      "usr"
							     "/"	      "/"
							     "///"	      "/"
							     "//usr//lib//"   "lib"

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       dirname(), the Base Definitions volume of IEEE Std 1003.1-2001, <libgen.h>, the Shell and Utilities volume of  IEEE Std 1003.1-2001,  base-
       name

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
       Electrical  and	Electronics  Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE
       and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can  be  obtained
       online at http://www.opengroup.org/unix/online.html .

IEEE
/The Open Group						       2003							      BASENAME(3P)