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• Learn what is Nextflow

• Install and configure Nextflow

• Find pipelines on repositories (e.g. nf-core and epi2me)

• Run pipelines using either the command line or a PBS script

• Understand input and parameter specifications

• Understand the concept of caching and the resume function

• Understand how Nextflow pipelines output results

What will be covered during the workshop

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• 1. Getting started with Nextflow

  • What is Nextflow?

  • Installing Nextflow

  • Nextflow’s base configuration

• 2. Nextflow pipeline repositories

  • nf-core

    • What is nf-core?

    • What are nf-core pipelines?

    • Searching for available nf-core pipelines

    • nf-core support

  • epi2me workflows

• 3. Running pipelines

  • Fetching pipeline code

  • Software requirements for pipelines

  • Install and test that the pipeline installed successfully

    • From the command line

    • Launching Nextflow using a PBS script

• 4. Input specifications

  • Samplesheet input

    • Examples of samplesheets

    • Exercise 1

    • Exercise 2

  • Input folder

• 5. Parameters

  • Finding list of parameters available

    • Exercise 1

  • Specifying parameters on the command line

• 6. Nextflow caching

  • Resume option

  • Structure of work folder

    • Task execution directory

    • Specifying another work directory

    • Clean the work directory

• 7. Nextflow pipeline outputs and PBS outputs

  • Results folder

  • Nextflow log, metrics and reports

  • PBS output

• 8. Where to from now?

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