NAME
    gcloud alpha storage hash - calculates hashes on local or cloud files

SYNOPSIS
    gcloud alpha storage hash URLS [URLS ...]
        [--additional-headers=HEADER=VALUE] [--hex]
        [--skip-crc32c | --skip-md5] [--decryption-keys=[DECRYPTION_KEY,...]]
        [GCLOUD_WIDE_FLAG ...]

DESCRIPTION
    (ALPHA) Calculates hashes on local or cloud files that can be used to
    compare with "gcloud storage ls -L" output. If a specific hash option is
    not provided, this command calculates all gcloud storage-supported hashes
    for the file.

    Note that gcloud storage automatically performs hash validation when
    uploading or downloading files, so this command is only needed if you want
    to write a script that separately checks the hash for some reason.

    If you calculate a CRC32C hash for the file without a precompiled
    google-crc32c installation, hashing will be very slow.

EXAMPLES
    To get the MD5 and CRC32C hash digest of a cloud object in Base64 format:

        $ gcloud alpha storage hash gs://bucket/object

    To get just the MD5 hash digest of a local object in hex format:

        $ gcloud alpha storage hash /dir/object.txt --skip-crc32c --hex

POSITIONAL ARGUMENTS
     URLS [URLS ...]
        Local or cloud URLs of objects to hash.

FLAGS
     --additional-headers=HEADER=VALUE
        Includes arbitrary headers in storage API calls. Accepts a comma
        separated list of key=value pairs, e.g. header1=value1,header2=value2.
        Overrides the default storage/additional_headers property value for
        this command invocation.

     --hex
        Output hash digests in hex format. By default, digests are displayed in
        base64.

     At most one of these can be specified:

       --skip-crc32c
          Skip CRC32C hash calculation. Useful if command is running slow.

       --skip-md5
          Skip MD5 hash calculation. Useful if command is running slow.

ENCRYPTION FLAGS
     --decryption-keys=[DECRYPTION_KEY,...]
        A comma-separated list of customer-supplied encryption keys (RFC 4648
        section 4 base64-encoded AES256 strings) that will be used to decrypt
        Cloud Storage objects. Data encrypted with a customer-managed
        encryption key (CMEK) is decrypted automatically, so CMEKs do not need
        to be listed here.

GCLOUD WIDE FLAGS
    These flags are available to all commands: --access-token-file, --account,
    --billing-project, --configuration, --flags-file, --flatten, --format,
    --help, --impersonate-service-account, --log-http, --project, --quiet,
    --trace-token, --user-output-enabled, --verbosity.

    Run $ gcloud help for details.

NOTES
    This command is currently in alpha and might change without notice. If this
    command fails with API permission errors despite specifying the correct
    project, you might be trying to access an API with an invitation-only early
    access allowlist. This variant is also available:

        $ gcloud storage hash

