[unix-history] / usr.bin / head / head.1

.\" Copyright (c) 1980, 1990 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	6.6 (Berkeley) 7/24/91
.\"
.Dd July 14, 1993
.Dt HEAD 1
.Os
.Sh NAME
.Nm head
.Nd give first few lines
.Sh SYNOPSIS
.Nm head
.Op Fl n Ar count
.Op Ar
.Sh DESCRIPTION
This filter gives the first
.Ar count
lines of each of the specified files, or of the standard input.
If
.Ar count
is omitted it defaults to
10.
.Sh SEE ALSO
.Xr tail 1
.Sh STANDARDS
The 
.Nm head
command is expected to be
.St -p1003.2
compliant.
.Pp
The historic command line syntax of 
.Nm head
is supported by this implementation.
.Sh HISTORY
The
.Nm head
command appeared in
.Bx 3.0 .
Commit	Line	Data
15637ed4 RG	1	.\" Copyright (c) 1980, 1990 The Regents of the University of California.
	2	.\" All rights reserved.
	3	.\"
	4	.\" Redistribution and use in source and binary forms, with or without
	5	.\" modification, are permitted provided that the following conditions
	6	.\" are met:
	7	.\" 1. Redistributions of source code must retain the above copyright
	8	.\" notice, this list of conditions and the following disclaimer.
	9	.\" 2. Redistributions in binary form must reproduce the above copyright
	10	.\" notice, this list of conditions and the following disclaimer in the
	11	.\" documentation and/or other materials provided with the distribution.
	12	.\" 3. All advertising materials mentioning features or use of this software
	13	.\" must display the following acknowledgement:
	14	.\" This product includes software developed by the University of
	15	.\" California, Berkeley and its contributors.
	16	.\" 4. Neither the name of the University nor the names of its contributors
	17	.\" may be used to endorse or promote products derived from this software
	18	.\" without specific prior written permission.
	19	.\"
	20	.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	21	.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	22	.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	23	.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	24	.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	25	.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	26	.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	27	.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	28	.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	29	.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	30	.\" SUCH DAMAGE.
	31	.\"
	32	.\" @(#)head.1 6.6 (Berkeley) 7/24/91
	33	.\"
78ed81a3	34	.Dd July 14, 1993
15637ed4	35	.Dt HEAD 1
78ed81a3	36	.Os
15637ed4 RG	37	.Sh NAME
	38	.Nm head
	39	.Nd give first few lines
	40	.Sh SYNOPSIS
	41	.Nm head
78ed81a3	42	.Op Fl n Ar count
15637ed4 RG	43	.Op Ar
	44	.Sh DESCRIPTION
	45	This filter gives the first
	46	.Ar count
	47	lines of each of the specified files, or of the standard input.
	48	If
	49	.Ar count
	50	is omitted it defaults to
	51	10.
	52	.Sh SEE ALSO
	53	.Xr tail 1
78ed81a3	54	.Sh STANDARDS
	55	The
	56	.Nm head
	57	command is expected to be
	58	.St -p1003.2
	59	compliant.
	60	.Pp
	61	The historic command line syntax of
	62	.Nm head
	63	is supported by this implementation.
15637ed4 RG	64	.Sh HISTORY
	65	The
	66	.Nm head
	67	command appeared in
	68	.Bx 3.0 .