73 lines
2.5 KiB
Groff
73 lines
2.5 KiB
Groff
.\" Copyright (c) 1980, 1990, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)head.1 8.1 (Berkeley) 6/6/93
|
|
.\"
|
|
.Dd June 6, 1993
|
|
.Dt HEAD 1
|
|
.Os BSD 3
|
|
.Sh NAME
|
|
.Nm head
|
|
.Nd display first lines of a file
|
|
.Sh SYNOPSIS
|
|
.Nm head
|
|
.Op Fl n Ar count
|
|
.Op Fl c Ar bytes
|
|
.Op Ar file ...
|
|
.Sh DESCRIPTION
|
|
This filter displays the first
|
|
.Ar count
|
|
lines or
|
|
.Ar bytes
|
|
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.
|
|
.Pp
|
|
If more than a single file is specified, each file is preceded by a
|
|
header consisting of the string
|
|
.Dq ==> XXX <==
|
|
where
|
|
.Dq XXX
|
|
is the name of the file.
|
|
.Pp
|
|
The
|
|
.Nm head
|
|
utility exits 0 on success, and >0 if an error occurs.
|
|
.Sh SEE ALSO
|
|
.Xr tail 1
|
|
.Sh HISTORY
|
|
The
|
|
.Nm head
|
|
command appeared in
|
|
.Bx 3.0 .
|