CDO

Good afternoon,

I am experiencing some issues when using CDO functions with -cat path/files.nc instead of a single infile.nc. I tried the following:
cdo timmin infile minfile
cdo timmax infile maxfile
However, instead of using a single infile.nc, I applied the -cat path/files.nc operator, as I am concatenating many files and creating a copy would be too heavy.

Once I have minfile and maxfile, I attempt to compute the 90th percentile with the following command:

cdo timpctl,90 -cat path/files.nc minfile maxfile outfile , but it applies the -cat to everything and it gives me the eror:

cdo (Abort): Too few streams specified! Operator timpctl needs 3 input streams and 1 output stream!

Is there a method to compute the 90th percentile separating the functions, without having to make a copy of all the files, but using directly -cat path/files.nc instead?

Thank you in advance for your help