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\" from: @(#)head.1 8.1 (Berkeley) 6/6/93
\"
Dd May 4, 2004
Dt HEAD 1
Os
Sh NAME
Nm head
Nd display first lines of a file
Sh SYNOPSIS
Nm
Op Fl qv
Op Fl n Ar count
Op Fl c Ar byte_count
Op Ar file ...
Sh DESCRIPTION
This filter displays the first
Ar count
lines of each of the specified files, or of the standard input if no
files are specified.
If
Ar count
is omitted it defaults to 10.
If
Fl c Ar byte_count
is specified,
Nm
counts bytes instead of lines.
Pp
If more than a single file is specified, or the
Fl v
option is used, each file is preceded by a header consisting of the string
Dq ==> XXX <==
where
Dq XXX
is the name of the file.
The
Fl q
flag disables the printing of the header in all cases.
Sh EXIT STATUS
Ex -std head
Sh COMPATIBILITY
The historic command line syntax of
Nm
is supported by this implementation.
Pp
This command is mostly compatible with GNU extensions to
Nm .
Sh SEE ALSO
Xr tail 1
Sh STANDARDS
The
Nm
utility conforms to
St -p1003.2-92 .
Sh HISTORY
The
Nm
utility appeared in
Bx 3.0 .
It was enhanced to include the
Fl c ,
Fl q ,
and
Fl v
options for
Nx 2.1 .
