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BASENAME(3) FreeBSD Library Functions Manual BASENAME(3) NAME basename - extract the base portion of a pathname SYNOPSIS #include <libgen.h> char * basename(char *path); DESCRIPTION The basename() function returns the last component from the pathname pointed to by path, deleting any trailing `/' characters. If path consists entirely of `/' characters, a pointer to the string "/" is returned. If path is a null pointer or the empty string, a pointer to the string "." is returned. RETURN VALUES On successful completion, basename() returns a pointer to the last component of path. If basename() fails, a null pointer is returned and the global variable errno is set to indicate the error. ERRORS The following error codes may be set in errno: [ENAMETOOLONG] The path component to be returned was larger than PATH_MAX. SEE ALSO basename(1), dirname(1), dirname(3) STANDARDS The basename() function conforms to the X/Open System Interfaces option of the IEEE Std 1003.1-2008 ("POSIX.1") specification. HISTORY The basename() function first appeared in OpenBSD 2.2. AUTHORS Todd C. Miller CAVEATS basename() returns a pointer to internal static storage space that will be overwritten by subsequent calls. Other vendor implementations of basename() may modify the contents of the string passed to basename(); this should be taken into account when writing code which calls this function if portability is desired. FreeBSD 14.1-RELEASE-p8 October 20, 2020 FreeBSD 14.1-RELEASE-p8