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tldr/pages/common/nextclade.md

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# nextclade
> Bioinformatics tool for virus genome alignment, clade assignment and qc checks.
> More information: <https://docs.nextstrain.org/projects/nextclade/en/stable/user/nextclade-cli/reference.html>.
- Align sequences to user provided reference, outputting the alignment to a file:
`nextclade run {{path/to/sequences.fa}} {{[-r|--input-ref]}} {{path/to/reference.fa}} {{[-o|--output-fasta]}} {{path/to/alignment.fa}}`
- Create a TSV report, auto-downloading the latest dataset:
`nextclade run {{path/to/fasta}} {{[-d|--dataset-name]}} {{dataset_name}} {{[-t|--output-tsv]}} {{path/to/report.tsv}}`
- List all available datasets:
`nextclade dataset list`
- Download the latest SARS-CoV-2 dataset:
`nextclade dataset get {{[-n|--name]}} sars-cov-2 {{[-o|--output-dir]}} {{path/to/directory}}`
- Use a downloaded dataset, producing all outputs:
`nextclade run {{[-D|--input-dataset]}} {{path/to/dataset_dir}} {{[-O|--output-all]}} {{path/to/output_dir}} {{path/to/sequences.fasta}}`
- Run on multiple files:
`nextclade run {{[-d|--dataset-name]}} {{dataset_name}} {{[-t|--output-tsv]}} {{path/to/output_tsv}} -- {{path/to/input_fasta_1 path/to/input_fasta_2 ...}}`
- Try reverse complement if sequence does not align:
`nextclade run --retry-reverse-complement {{[-d|--dataset-name]}} {{dataset_name}} {{[-t|--output-tsv]}} {{path/to/output_tsv}} {{path/to/input_fasta}}`