FILE(1) FILE(1) NAME file - determine file type SYNOPSIS file file ... file -f names DESCRIPTION File performs a series of tests on a set of files in an attempt to classify their contents by language or purpose. The names may be enumerated or contained in the file speci- fied by the -f option. BUGS It can make mistakes, for example classifying a file of dec- imal data, `.01', `.02', etc. as troff(1) input.