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rclone/docs/content/commands/rclone_hashsum.md
lostheli c8cfa43ccc Add a download flag to hashsum and related commands to force rclone to download and hash files locally 
This commit modifies the operations.hashSum function by adding an alternate code path. This code path is triggered by passing downloadFlag = True. When activated, rclone will download files from the remote and hash them locally. downloadFlag = False preserves the existing behavior of using the remote to retrieve the hash.

This commit modifies HashLister to support the new hashSum method as well as consolidating the roles of HashLister, HashListerBase64, Md5sum, and Sha1sum.  The printing of hashes from the function defined in HashLister has been revised to work with --progress.  There are light changes to operations.syncFprintf and cmd.startProgress for this.

The unit test operations_test.TestHashSums is modified to support this change and test the download functionality.

The command functions hashsum, md5sum, sha1sum, and dbhashsum are modified to support this change.  A download flag has been added and an output-file flag has been added.  The output-file flag writes hashes to a file instead of stdout to avoid the need to redirect stdout.
2020-12-27 15:40:44 +00:00

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title description slug url
rclone hashsum Produces a hashsum file for all the objects in the path. rclone_hashsum /commands/rclone_hashsum/

rclone hashsum

Produces a hashsum file for all the objects in the path.

Synopsis

Produces a hash file for all the objects in the path using the hash
named. The output is in the same format as the standard
md5sum/sha1sum tool.

By default, the hash is requested from the remote. If the hash is
not supported by the remote, no hash will be returned. With the
download flag, the file will be downloaded from the remote and
hashed locally enabling any hash for any remote.

Run without a hash to see the list of all supported hashes, e.g.

$ rclone hashsum
Supported hashes are:
  * MD5
  * SHA-1
  * DropboxHash
  * QuickXorHash

Then

$ rclone hashsum MD5 remote:path

rclone hashsum <hash> remote:path [flags]

Options

      --base64               Output base64 encoded hashsum
      --download             Download the file and hash it locally; if this flag is not specified, the hash is requested from the remote
  -h, --help                 help for hashsum
      --output-file string   Output hashsums to a file rather than the terminal

See the global flags page for global options not listed here.

SEE ALSO

  • rclone - Show help for rclone commands, flags and backends.