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.\" Copyright (c) 1987, 1990, 1993
.\" The Regents of the University of California. All rights reserved.
.\"
.\" This code is derived from software contributed to Berkeley by
.\" the Institute of Electrical and Electronics Engineers, Inc.
.\"
.\" 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.
.\"
.\" @(#)cmp.1 8.1 (Berkeley) 6/6/93
.\"
.Dd June 6, 1993
.Dt CMP 1
.Os
.Sh NV
.Nm cmp
.Nd kt fjl sszehasonltsa
.Sh TTEKINTS
.Nm cmp
.Op Fl l | Fl s
.Ar file1 file2
.Op Ar eltols1 Op Ar eltols2
.Sh LERS
A cmp program sszehasonlt kt tetszleges tpus fjlt s kirja az
eredmnyt a szabvnyos kimenetre.
Alaprtelmezs szerint a
.Nm
nem r ki semmit, ha a kt fjl megegyezik. Ha klnbznek, akkor kirja a
byte-pozci s a sor szmt, ahol az els klnbsg elfordult.
.Pp
A byte-pozcik s a sorszmok szmozsa egytl kezddik.
.Pp
A kvetkez kapcsolk hasznlhatk:
.Bl -tag -width flag
.It Fl l
Minden elfordul klnbsgnl kirja a byte-pozcit (decimlis) s a
klnbz byte-rtkeket (oktlis).
.It Fl s
Nem r ki semmit klnbz fjlok esetn, csak a kilpsi kdot adja vissza.
.El
.Pp
Az
.Ar eltols1
s
.Ar eltols2
opcionlis argumentumok azt a byte-pozcit adjk meg a
.Ar file1
s
.Ar file2
elejhez kpest, ahonnan az sszehasonltst kezdeni kell.
Az eltols alaprtelmezs szerint decimlis, de megadhat hexadecimlis vagy
oktlis rtkknt is, ha a szmot ``0x'' vagy ``0'' elzi meg.
.Pp
A
.Nm cmp
program a kvetkez rtkek valamelyikt adja vissza:
.Bl -tag -width 4n
.It 0
A fjlok megegyeznek.
.It 1
A fjlok klnbznek; ide tartozik az az eset is, amikor az egyik file
megegyezik a msik fjl elejvel. Ilyenkor ha az
.Fl s
kapcsol nem volt megadva, a
.Nm cmp
program kirja a szabvnyos kimenetre, hogy elrte a fjl vgt a rvidebb
fjlban (mieltt klnbsget tallt volna).
.It >1
Hiba trtnt.
.El
.Sh LSD MG
.Xr diff 1 ,
.Xr diff3 1
.Sh SZABVNYOK
A
.Nm cmp
program felteheten
.St -p1003.2
kompatbilis.
.Sh MAGYAR FORDTS
Dnes Pl <denespal@valerie.inf.elte.hu>
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