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DIRNAME(3) BSD Library Functions Manual DIRNAME(3)
dirname -- report the parent directory name of a file pathname
Standard C Library (libc, -lc)
The dirname() function takes a pointer to a character string that contains a pathname, path,
and returns a pointer to a string that is a pathname of the parent directory of path.
Trailing '/' characters in path are not counted as part of the path.
If path does not contain a '/', then dirname() returns a pointer to the string ``.''.
If path is a null pointer or points to an empty string, dirname() returns a pointer to the
The dirname() function returns a pointer to a string that is the parent directory of path.
o X/Open Portability Guide Issue 4, Version 2 (``XPG4.2'')
o IEEE Std 1003.1-2001 (``POSIX.1'')
If the length of the result is longer than PATH_MAX bytes (including the terminating nul),
the result will be truncated.
The dirname() function returns a pointer to static storage that may be overwritten by subse-
quent calls to dirname(). This is not strictly a bug; it is explicitly allowed by IEEE Std
BSD May 10, 2008 BSD
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