# get unique OTUs from venn

**URL:** <https://forum.mothur.org/t/get-unique-otus-from-venn/1556>\
**Category:** Commands in mothur\
**Created:** [October 25, 2013, 2:02pm UTC](https://forum.mothur.org/t/get-unique-otus-from-venn/1556 "2013-10-25T14:02:44Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![manuelaira](https://avatars.discourse-cdn.com/v4/letter/m/5daacb/32.png) [@manuelaira](https://forum.mothur.org/u/manuelaira)\
**Post date:** [October 25, 2013, 2:02pm UTC](https://forum.mothur.org/t/get-unique-otus-from-venn/1556/1 "2013-10-25T14:02:44Z")

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Hi all,

After doing a venn command I have the sharedotus file, were I cand find OTUs shared by different experimental treatments (each with several replicates, I have a merge shared file). How can I know what OTUs are unique for each experimental treatmen? I have tried with get.sharedseqs(shared=mifile.shared) and mothur tells me that I have to provide a list and group file. I would do this but I build my shared file following the structure of mothur shared files with data obtained from other sources (picrust).  
Thank you very much

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**Author:** ![westcott](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.mothur.org/westcott/32/18_2.png) [@westcott](https://forum.mothur.org/u/westcott)\
**Post date:** [October 25, 2013, 2:23pm UTC](https://forum.mothur.org/t/get-unique-otus-from-venn/1556/2 "2013-10-25T14:23:16Z")

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What version of mothur are you running? Our current verison can run commands like: get.sharedseqs(shared=abrecovery.an.shared, label=0.03, uniquegroups=A-B).

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**Author:** ![manuelaira](https://avatars.discourse-cdn.com/v4/letter/m/5daacb/32.png) [@manuelaira](https://forum.mothur.org/u/manuelaira)\
**Post date:** [October 28, 2013, 8:18am UTC](https://forum.mothur.org/t/get-unique-otus-from-venn/1556/3 "2013-10-28T08:18:00Z")

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Upps,

My fault, I am running version 1.29.

Sorry