| Linux / Unix Command: realpath |
NAME
realpath - return the canonicalized absolute pathnameSYNOPSIS
#include <limits.h> #include <stdlib.h> char *realpath(const char *path, char *resolved_path);
DESCRIPTION
realpath expands all symbolic links and resolves references to '/./', '/../' and extra '/' characters in the null terminated string named by path and stores the canonicalized absolute pathname in the buffer of size PATH_MAX named by resolved_path. The resulting path will have no symbolic link, '/./' or '/../' components.RETURN VALUE
If there is no error, it returns a pointer to the resolved_path.Otherwise it returns a NULL pointer, and the contents of the array resolved_path are undefined. The global variable errno is set to indicate the error.
ERRORS
- EACCES
- Read or search permission was denied for a component of the path prefix.
- EINVAL
- Either path or resolved_path is NULL. (In libc5 this would just cause a segfault.)
- EIO
- An I/O error occurred while reading from the file system.
- ELOOP
- Too many symbolic links were encountered in translating the pathname.
- ENAMETOOLONG
- A component of a path name exceeded NAME_MAX characters, or an entire path name exceeded PATH_MAX characters.
- ENOENT
- The named file does not exist.
- ENOTDIR
- A component of the path prefix is not a directory.
SEE ALSO
readlink(2), getcwd(3), pathconf(3), sysconf(3)
Important: Use the man command (% man) to see how a command is used on your particular computer.
