128 lines
4.0 KiB
Markdown
128 lines
4.0 KiB
Markdown
---
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title: Key Commands
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menu:
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main:
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parent: Client
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weight: 3
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---
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<!---
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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Ozone shell supports the following key commands.
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* [get](#get)
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* [put](#put)
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* [delete](#delete)
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* [info](#info)
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* [list](#list)
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### Get
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The key get command downloads a key from Ozone cluster to local file system.
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***Params:***
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| Arguments | Comment |
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|--------------------------------|-----------------------------------------|
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| Uri | The name of the key in **/volume/bucket/key** format.
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| FileName | Local file to download the key to.
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{{< highlight bash >}}
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ozone sh key get /hive/jan/sales.orc sales.orc
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{{< /highlight >}}
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Downloads the file sales.orc from the _/hive/jan_ bucket and writes to the
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local file sales.orc.
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### Put
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Uploads a file from the local file system to the specified bucket.
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***Params:***
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| Arguments | Comment |
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|--------------------------------|-----------------------------------------|
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| Uri | The name of the key in **/volume/bucket/key** format.
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| FileName | Local file to upload.
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| -r, --replication | Optional, Number of copies, ONE or THREE are the options. Picks up the default from cluster configuration.
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{{< highlight bash >}}
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ozone sh key put /hive/jan/corrected-sales.orc sales.orc
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{{< /highlight >}}
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The above command will put the sales.orc as a new key into _/hive/jan/corrected-sales.orc_.
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### Delete
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The key delete command removes the key from the bucket.
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***Params:***
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| Arguments | Comment |
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|--------------------------------|-----------------------------------------|
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| Uri | The name of the key.
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{{< highlight bash >}}
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ozone sh key delete /hive/jan/corrected-sales.orc
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{{< /highlight >}}
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The above command deletes the key _/hive/jan/corrected-sales.orc_.
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### Info
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The key info commands returns the information about the key.
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***Params:***
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| Arguments | Comment |
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|--------------------------------|-----------------------------------------|
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| Uri | The name of the key.
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{{< highlight bash >}}
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ozone sh key info /hive/jan/sales.orc
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{{< /highlight >}}
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The above command will print out the information about _/hive/jan/sales.orc_
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key.
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### List
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The key list command allows user to list all keys in a bucket.
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***Params:***
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| Arguments | Comment |
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|--------------------------------|-----------------------------------------|
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| -l, --length | Maximum number of results to return. Default: 1000
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| -p, --prefix | Optional, Only buckets that match this prefix will be returned.
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| -s, --start | The listing will start from key after the start key.
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| Uri | The name of the _volume_.
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{{< highlight bash >}}
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ozone sh key list /hive/jan
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{{< /highlight >}}
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This command will list all keys in the bucket _/hive/jan_.
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You can try out these commands from the docker instance of the [Alpha
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Cluster](runningviadocker.html).
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