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33 .Nd change the name of a file
39 .Fn rename "const char *from" "const char *to"
41 .Fn renameat "int fromfd" "const char *from" "int tofd" "const char *to"
52 exists, it is first removed.
57 must be of the same type (that is, both directories or both
58 non-directories), and must reside on the same file system.
65 already exists, an instance of
67 will always exist, even if the system should crash in
68 the middle of the operation.
70 If the final component of
73 the symbolic link is renamed,
74 not the file or directory to which it points.
80 resolve to the same directory entry, or to different directory
81 entries for the same existing file,
83 returns success without taking any further action.
87 system call is equivalent to
89 except in the case where either
93 specifies a relative path.
96 is a relative path, the file to be renamed is located
97 relative to the directory associated with the file descriptor
99 instead of the current working directory.
102 is a relative path, the same happens only relative to the directory associated
107 is passed the special value
113 parameter, the current working directory is used in the determination
114 of the file for the respective path parameter.
116 .\"The system can deadlock if a loop in the file system graph is present.
117 .\"This loop takes the form of an entry in directory
121 .\"being a hard link to directory
131 .\"When such a loop exists and two separate processes attempt to
133 .\".Ql rename a/foo b/bar
135 .\".Ql rename b/bar a/foo ,
137 .\"the system may deadlock attempting to lock
138 .\"both directories for modification.
139 .\"Hard links to directories should be
140 .\"replaced by symbolic links by the system administrator.
147 will fail and neither of the argument files will be
150 .It Bq Er ENAMETOOLONG
151 A component of either pathname exceeded 255 characters,
152 or the entire length of either path name exceeded 1023 characters.
161 A component of either path prefix denies search permission.
163 The requested link requires writing in a directory with a mode
164 that denies write permission.
166 The directory pointed at by the
168 argument denies write permission, and the operation would move
169 it to another parent directory.
171 The file pointed at by the
173 argument has its immutable, undeletable or append-only flag set, see the
175 manual page for more information.
177 The parent directory of the file pointed at by the
179 argument has its immutable or append-only flag set.
181 The parent directory of the file pointed at by the
183 argument has its immutable flag set.
185 The directory containing
188 and neither the containing directory nor
190 are owned by the effective user ID.
192 The file pointed at by the
196 the directory containing
199 and neither the containing directory nor
201 are owned by the effective user ID.
203 Too many symbolic links were encountered in translating either pathname.
205 A component of either path prefix is not a directory.
223 and the file named by
225 are on different logical devices (file systems).
227 code will not be returned if the implementation permits cross-device
230 The directory in which the entry for the new name is being placed
231 cannot be extended because there is no space left on the file
232 system containing the directory.
234 The directory in which the entry for the new name
235 is being placed cannot be extended because the
236 user's quota of disk blocks on the file system
237 containing the directory has been exhausted.
239 An I/O error occurred while making or updating a directory entry.
241 Corrupted data was detected while reading from the file system.
243 The requested link requires writing in a directory on a read-only file
247 points outside the process's allocated address space.
252 is a parent directory of
254 or an attempt is made to rename
262 is a directory and is not empty.
265 was called and the process is in capability mode.
268 In addition to the errors returned by the
277 argument does not specify an absolute path and the
281 nor a valid file descriptor open for searching, or the
283 argument does not specify an absolute path and the
287 nor a valid file descriptor open for searching.
291 argument is not an absolute path and
295 nor a file descriptor associated with a directory, or the
297 argument is not an absolute path and
301 nor a file descriptor associated with a directory.
304 is specified and the process is in capability mode.
305 .It Bq Er ENOTCAPABLE
307 is an absolute path or contained a ".." component leading to a directory
308 outside of the directory hierarchy specified by
312 .It Bq Er ENOTCAPABLE
315 file descriptor lacks the
316 .Dv CAP_RENAMEAT_SOURCE
319 file descriptor lacks the
320 .Dv CAP_RENAMEAT_TARGET
330 system call is expected to conform to
334 system call follows The Open Group Extended API Set 2 specification.
338 system call appeared in