How to let nextflow scratch move files in nxf_unstage rather than copy files?

[lishengting]

Nextflow scratch copy files (nxf_fs_copy) wasted too much time and disk space in nxf_unstage().
Because I set the temporary folder located on the same hard disk with working dir (scratch = '/path/to/work/tmp'), so move or hard link files are more efficcient.
Is it possible to chage the method from nxf_fs_copy to nxf_fs_move? Thanks!

[bentsherman]

Use the stageOutMode directive: https://nextflow.io/docs/latest/process.html#stageoutmode

[lishengting]

Yes, it worked. Thanks a lot!