ls-R files new.texhashmakeindex looks for *.ist files: kpsewhich --show-path ist~/texmf: private root directory for TeX files (see also output of kpsewhich --expand-var '$TEXMFHOME')/etc/texmf/texmf.cnf: TeX (Live) and Kpathsea configuration file (a generated file, see man update-texmf)/etc/tex4ht/tex4ht.env: TeX4ht configuration file