3 file \- make a guess as to a file's type based on contents
18 .EX "file a.out ar.h" "Guess at types"
21 \fIFile\fR reads the first block of a file and tries to make an
22 intelligent guess about what kind of file it is.
23 It understands about archives, C
24 source programs, executable binaries, shell scripts, and English text.