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Run a model

ollama run gemma3

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Multiline input

For multiline input, you can wrap text with """: 
>>> """Hello,
... world!
... """
I'm a basic program that prints the famous "Hello, world!" message to the console.

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Multimodal models

ollama run gemma3 "What's in this image? /Users/jmorgan/Desktop/smile.png"

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Download a model

ollama pull gemma3

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Remove a model

ollama rm gemma3

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List models

ollama ls

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Sign in to Ollama

ollama signin

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Sign out of Ollama

ollama signout

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Create a customized model

First, create a Modelfile 
FROM gemma3
SYSTEM """You are a happy cat."""
Then run ollama create: 
ollama create -f Modelfile

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List running models

ollama ps

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Stop a running model

ollama stop gemma3

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Start Ollama

ollama serve
To view a list of environment variables that can be set run ollama serve --help