After comprehensive search in forum about extracting molecular orbitals (which are expressed over atomic orbitals), I find there is a utility "mov2asc" to do this. The usage:
mov2asc guess_nbf infile outfile
But when I use it like "mov2asc 40 h2o.movecs h2o.txt"
h2o.movecs is the file obtained by running the nwchem job.
Nothing happens. No new file appears, and old file keeps the same.
WHY???