sync
command is used to sync object upload, download, and copy. The difference between sync
and cp
is that sync
first compares the CRC64 value of an object with the same name that already exists, and if the value is the same, the object will not be transferred../coscli sync <source_path> <destination_path> [flag]
cp
includes the following parameters:Parameter Format | Description | Example |
source_path | Source file path, which can be a local path or a COS file path. The COS path is accessible by using the bucket alias or bucket name configured in the configuration file as detailed in Download and Installation Configuration. If you use the bucket name for access, you also need to include the endpoint flag. | Local path: ~/example.txt COS file path specified with the bucket alias: cos://bucketalias/example.txt COS file path specified with the bucket name: cos://examplebucket-1250000000/example.txt |
destination_path | Destination file path, which can be a local path or a COS file path. The COS path is accessible by using the bucket alias or bucket name configured in the configuration file as detailed in Download and Installation Configuration. If you use the bucket name for access, you also need to include the endpoint flag. | Local path: ~/example.txt COS file path specified with the bucket alias: cos://bucketalias/example.txt COS file path specified with the bucket name: cos://examplebucket-1250000000/example.txt |
sync
includes the following optional flags:Flag Abbreviation | Flag Name | Description |
None | --include | Includes specific objects. |
None | --exclude | Excludes specific objects. |
-r | --recursive | Specifies whether to traverse all objects in the directory recursively. |
None | --storage-class | Specifies the storage class of the uploaded file. Default value: STANDARD . For more information, see Storage Class Overview. |
None | --part-size | Part size. Default value: 32 MB; maximum value: 5 GB |
None | --thread-num | Number of concurrent threads. Default value: 5 |
None | --rate-limiting | Speed limit for a single URL. Value range: 0.1–100 MB/s |
None | --snapshot-path | Specifies the directory where the snapshot information is stored when the uploaded or downloaded file is saved. During the next file upload or download, COSCLI will read the snapshot information in the specified directory for incremental upload or download. This option is used to speed up directory file sync. |
None | --meta | Metadata of the uploaded file, including certain HTTP standard attributes (HTTP Header) and custom metadata prefixed with x-cos-meta- (User Meta). The file metadata is in the format of header:value#header:value , such as Expires:2022-10-12T00:00:00.000Z#Cache-Control:no-cache#Content-Encoding:gzip#x-cos-meta-x:x . |
None | --routines | Specifies the number of files for concurrent upload or download threads between files. The default value is 3 . |
None | --fail-output | This option determines whether to enable the error output of files when upload or download fails (The default value is true , enabled). If enabled, failed file transfers will be recorded in the specified directory (If no directory is specified, the default directory ./coscli_output is used). If disabled, only the number of failed files will be output to the console. |
None | --fail-output-path | This option is used to specify the error output folder for recording failed file uploads or downloads. By providing a custom folder path, you can control the location and name of the error output folder. If this option is not set, the default error log folder ./coscli_output is used. |
None | --retry-num | Number of frequency limit retry times (The default value is 0 , indicating no retry will be performed). It can be specified as 1-10 times. When multiple machines execute download operations on the same COS directory simultaneously, you can specify this parameter to retry to avoid frequency limit errors. |
None | --err-retry-num | Number of error retry times (The default value is 0 ). Set it as 1-10 times, or set it to 0 , indicating no retry will be performed. |
None | --err-retry-interval | Retry interval (only available when --err-retry-num is set as 1-10 ). Set the retry interval as 1-10 seconds. If it is not set or is set to 0 , each retry interval will be a random value between 1-10 seconds. |
None | --only-current-dir | Whether to upload only files in the current directory, ignoring subdirectories and their contents (The default value is false , indicating they will not be ignored). |
None | --disable-all-symlink | Whether to ignore the subfiles and subdirectories of all the soft links during upload (The default value is true , indicating they will not be ignored). |
None | --enable-symlink-dir | Whether to upload the subdirectories of the soft links (The default value is false , indicating they will not be uploaded). |
None | --disable-crc64 | Whether to disable CRC64 data validation (The default value is false , indicating validation is enabled). |
None | --delete | Deletes any other files in the specified target path, retaining only the files synchronized this time (The default value is false , indicating the files will not be deleted). It is recommended to enable version control before using the --delete option to prevent accidental data deletion. |
None | --backup-dir | Synchronizes the backup of deleted files, which preserves files that are deleted on the target end but do not exist on the source end (effective only during the download, and must be specified when --delete=true ). For upload and bucket copies, use version control to restore accidentally deleted data. |
None | --force | Forced operation, without confirmation prompt (The default value is false ). |
No | --disable-checksum | The default value is false, verifying the CRC64 of the entire file. If set to true, only verify shard CRC64. |
sync
automatically uses concurrent upload/download for large objects.--part-size
, COSCLI will split the object into multiple parts according to --part-size
and use --thread-num
threads to concurrently upload/download the object.--rate-limiting
parameter to limit the speed of a single URL. When concurrent upload/download is enabled, the total rate is --thread-num * --rate-limiting
.--include
and --exclude
support standard regular expression syntax, so you can use them to filter out objects that meet specific criteria.zsh
, you may need to add double quotes at both ends of the pattern
string.snapshot-path
to the directory to be migrated or its subdirectories. ./coscli sync ~/test/ cos://bucket1/example/ -r --include ".*.txt" --snapshot-path=/path/snapshot-path --meta=x-cos-meta-a:a#ContentType:text#Expires:2022-10-12T00:00:00.000Z
--snapshot-path
`) is not added, HEAD request fees will be incurred.--snapshot-path
`) is added and it is the first time the snapshot directory is generated, HEAD request fees will be incurred. If it is not the first time the snapshot directory is generated, no additional request fees will be incurred../coscli sync ~/example.txt cos://bucket1/example.txt
./coscli sync cos://bucket1/example.txt ~/example.txt
./coscli sync cos://bucket1/example.txt cos://bucket1/example_copy.txt
./coscli sync cos://bucket1/example.txt cos://bucket2/example_copy.txt
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