FILE(1)
NAME
file − determine file type
SYNOPSIS
file [ file ... ]
DESCRIPTION
File performs a series of tests on its argument files in an attempt to classify their contents by language or purpose. If no arguments are given, the classification is performed on standard input.
BUGS
It can make mistakes, for example classifying a file of decimal data, .01, .02, etc. as troff(1) input.
Plan 9 — January 03, 1993