Robert C. Edgar has developed a great program Usearch (https://drive5.com/usearch/download.html) However, the 32 bit version has limitations, the 64 bit version costs almost $ 1500 (
usearch -otutab_merge otutable1.txt,otutable2.txt,otutable3.txt -output otutable_merged.txt
This command is able to combine OTU tables. But due to the large amount of data, the 32-bit version cannot do this.
What does this command do? Here's an example
Output tab-delimited table
species1 0 1
species2 3 0
species3 0 2
Can you please tell me if there are analogs without limitation? I'm sure that python can do this, but maybe there are ready-made solutions.