This file is indexed.

/usr/lib/R/site-library/phylobase/nexusfiles/minSeq.nex is in r-cran-phylobase 0.8.2-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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#NEXUS


begin data;
   dimensions ntax=3 nchar=4;
   format datatype=dna missing=?;
   matrix
   seq1     atcg
   seq2     tcga
   seq3     cgat
   ;
end;