spell - 1.0-24 main

GNU Spell is a spell checking program which prints each misspelled word on a
line of its own. It is designed as a clone of the standard Unix `spell'
program, and implemented as a wrapper for Ispell. Spell accepts as its
arguments a list of files to read from. Within that list, the magical file name
`-' causes Spell to read from standard input. In addition, when called with no
file name arguments, Spell assumes that it should process standard input.