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**To update a pipeline**
The following ``update-pipeline`` example modifies the settings of the specified pipeline. You must specify both a channel and a data store activity and, optionally, as many as 23 additional activities, in the ``pipelineActivities`` array. ::
aws iotanalytics update-pipeline \
--cli-input-json file://update-pipeline.json
Contents of update-pipeline.json::
{
"pipelineName": "mypipeline",
"pipelineActivities": [
{
"channel": {
"name": "myChannelActivity",
"channelName": "mychannel",
"next": "myMathActivity"
}
},
{
"datastore": {
"name": "myDatastoreActivity",
"datastoreName": "mydatastore"
}
},
{
"math": {
"name": "myMathActivity",
"math": "(((temp - 32) * 5.0) / 9.0) + 273.15",
"attribute": "tempK",
"next": "myDatastoreActivity"
}
}
]
}
This command produces no output.
For more information, see `UpdatePipeline <https://docs.aws.amazon.com/iotanalytics/latest/APIReference/API_UpdatePipeline.html>`__ in the *AWS IoT Analytics API Reference*.
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