FILE(1) General Commands Manual FILE(1)NAMEfile - make a guess as to a file's type based on contentsSYNOPSISfile name ...EXAMPLESfile a.out ar.h # Guess at typesDESCRIPTIONFile reads the first block of a file and tries to make an intelligent guess about what kind of file it is. It understands about archives, C source programs, executable binaries, shell scripts, and English text. FILE(1)