32v 1m file
From Computer History Wiki
FILE(1) UNIX Programmer's Manual FILE(1)
file - determine file type
file file ...
_F_i_l_e performs a series of tests on each argument in an attempt to classify it. If an argument appears to be ascii, _f_i_l_e examines the first 512 bytes and tries to guess its language.
It often makes mistakes. In particular it often suggests that command files are C programs.