Find misspelled words with the GNU utility `aspell` from TeX files.

spellcheck.sh

#!/usr/bin/env bash

echo "** Misspelled English words **"

cat sections/*.tex abstracts/abstract_english.tex \
  | aspell \
  --personal ./wordlist \
  -W 3   \
  -d en  \
  list   \
  | sort | uniq -u;