aspell

Interactive spell checker. More information: http://aspell.net/.

Spell check a single file:

aspell check {{path/to/file}}

List misspelled words from standard input:

cat {{file}} | aspell list

Show available dictionary languages:

aspell dicts

Run aspell with a different language (takes two-letter ISO 639 language code):

aspell --lang={{cs}}

List misspelled words from standard input and ignore words from personal word list:

cat {{file}} | aspell --personal={{personal-word-list.pws}} list