description: "Convert file and directory names in place."
versionIntroduced: v1.70
# autogenerated - DO NOT EDIT, instead edit the source code in cmd/convmv/ and as part of making a release run "make commanddocs"
---
# rclone convmv
Convert file and directory names in place.
## Synopsis
convmv supports advanced path name transformations for converting and renaming files and directories by applying prefixes, suffixes, and other alterations.
| Command | Description |
|------|------|
| `--name-transform prefix=XXXX` | Prepends XXXX to the file name. |
| `--name-transform suffix=XXXX` | Appends XXXX to the file name after the extension. |
| `--name-transform suffix_keep_extension=XXXX` | Appends XXXX to the file name while preserving the original file extension. |
| `--name-transform trimprefix=XXXX` | Removes XXXX if it appears at the start of the file name. |
| `--name-transform trimsuffix=XXXX` | Removes XXXX if it appears at the end of the file name. |
| `--name-transform regex=/pattern/replacement/` | Applies a regex-based transformation. |
| `--name-transform replace=old:new` | Replaces occurrences of old with new in the file name. |
| `--name-transform date={YYYYMMDD}` | Appends or prefixes the specified date format. |
| `--name-transform truncate=N` | Truncates the file name to a maximum of N characters. |
| `--name-transform base64encode` | Encodes the file name in Base64. |
| `--name-transform base64decode` | Decodes a Base64-encoded file name. |
| `--name-transform encoder=ENCODING` | Converts the file name to the specified encoding (e.g., ISO-8859-1, Windows-1252, Macintosh). |
| `--name-transform decoder=ENCODING` | Decodes the file name from the specified encoding. |
| `--name-transform charmap=MAP` | Applies a character mapping transformation. |
| `--name-transform lowercase` | Converts the file name to lowercase. |
| `--name-transform uppercase` | Converts the file name to UPPERCASE. |
| `--name-transform titlecase` | Converts the file name to Title Case. |
--create-empty-src-dirs Create empty source dirs on destination after move
--delete-empty-src-dirs Delete empty source dirs after move
-h, --help help for convmv
```
Options shared with other commands are described next.
See the [global flags page](/flags/) for global options not listed here.
### Copy Options
Flags for anything which can copy a file
```
--check-first Do all the checks before starting transfers
-c, --checksum Check for changes with size & checksum (if available, or fallback to size only)
--compare-dest stringArray Include additional server-side paths during comparison
--copy-dest stringArray Implies --compare-dest but also copies files from paths into destination
--cutoff-mode HARD|SOFT|CAUTIOUS Mode to stop transfers when reaching the max transfer limit HARD|SOFT|CAUTIOUS (default HARD)
--ignore-case-sync Ignore case when synchronizing
--ignore-checksum Skip post copy check of checksums
--ignore-existing Skip all files that exist on destination
--ignore-size Ignore size when skipping use modtime or checksum
-I, --ignore-times Don't skip items that match size and time - transfer all unconditionally
--immutable Do not modify files, fail if existing files have been modified
--inplace Download directly to destination file instead of atomic download to temp/rename
-l, --links Translate symlinks to/from regular files with a '.rclonelink' extension
--max-backlog int Maximum number of objects in sync or check backlog (default 10000)
--max-duration Duration Maximum duration rclone will transfer data for (default 0s)
--max-transfer SizeSuffix Maximum size of data to transfer (default off)
-M, --metadata If set, preserve metadata when copying objects
--modify-window Duration Max time diff to be considered the same (default 1ns)
--multi-thread-chunk-size SizeSuffix Chunk size for multi-thread downloads / uploads, if not set by filesystem (default 64Mi)
--multi-thread-cutoff SizeSuffix Use multi-thread downloads for files above this size (default 256Mi)
--multi-thread-streams int Number of streams to use for multi-thread downloads (default 4)
--multi-thread-write-buffer-size SizeSuffix In memory buffer size for writing when in multi-thread mode (default 128Ki)
--name-transform stringArray Transform paths during the copy process
--no-check-dest Don't check the destination, copy regardless
--no-traverse Don't traverse destination file system on copy
--no-update-dir-modtime Don't update directory modification times
--no-update-modtime Don't update destination modtime if files identical
--order-by string Instructions on how to order the transfers, e.g. 'size,descending'
--partial-suffix string Add partial-suffix to temporary file name when --inplace is not used (default ".partial")
--refresh-times Refresh the modtime of remote files
--server-side-across-configs Allow server-side operations (e.g. copy) to work across different configs
--size-only Skip based on size only, not modtime or checksum
--streaming-upload-cutoff SizeSuffix Cutoff for switching to chunked upload if file size is unknown, upload starts after reaching cutoff or when file ends (default 100Ki)
-u, --update Skip files that are newer on the destination
```
### Important Options
Important flags useful for most commands
```
-n, --dry-run Do a trial run with no permanent changes
-i, --interactive Enable interactive mode
-v, --verbose count Print lots more stuff (repeat for more)
```
### Filter Options
Flags for filtering directory listings
```
--delete-excluded Delete files on dest excluded from sync
