# README.md > Author: Yaqing Liu > > Email: [yaqing.liu@outlook.com](mailto:yaqing.liu@outlook.com) > > Last Updates: 25/04/2021 #### Requirements - choppy - Ali-Cloud - Linux #### Introduction Variant calling pipeline from mapping to generating MAF files with three optional callers, i.e. TNseq, TNscope and Varscan2, for WGS and WES data. **Please carefully check the reference genome, bed file, etc.** #### Usage ``` open-choppy-env choppy install YaqingLiu/variant-calling-latest choppy samples YaqingLiu/variant-calling-latest --no-default # sample_id,fastq_1,fastq_2 choppy batch YaqingLiu/variant-calling-latest samples.csv -p Project -l Label # Query the status of all tasks in the project choppy query -L Label | grep "status" ```