file.1

UNIX版本6的源代码

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.sh NAME
file \*- determine file type
.sh SYNOPSIS
.bd file
file ...
.sh DESCRIPTION
.it File
performs a series of tests on each argument
in an attempt to classify it.
If an argument appears to be ascii,
.it file
examines the first 512 bytes
and tries to guess its language.
.sh BUGS