.TH FILE 1 .SH NAME file \- determine file type .SH SYNOPSIS .B file file ... .br .B file .B \-f names .SH DESCRIPTION .I 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 specified by the .BR \-f option. .SH BUGS It can make mistakes, for example classifying a file of decimal data, `.01', `.02', etc. as .IR troff (1) input.