I'm very pleased to announce the release of our new website and documentation using the new toolchain with Hugo and AsciiDoctor. To get more information about the new toolchain please read the FreeBSD Documentation Project Primer[1], Hugo docs[2] and AsciiDoctor docs[3]. Acknowledgment: Benedict Reuschling <bcr@> Glen Barber <gjb@> Hiroki Sato <hrs@> Li-Wen Hsu <lwhsu@> Sean Chittenden <seanc@> The FreeBSD Foundation [1] https://docs.FreeBSD.org/en/books/fdp-primer/ [2] https://gohugo.io/documentation/ [3] https://docs.asciidoctor.org/home/ Approved by: doceng, core
276 lines
8.5 KiB
Groff
276 lines
8.5 KiB
Groff
.\" -*- nroff -*-
|
||
.\"-
|
||
.\" Copyright (c) 1993 Winning Strategies, Inc.
|
||
.\" 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 Winning Strategies, Inc.
|
||
.\" 4. The name of the author may not be used to endorse or promote products
|
||
.\" derived from this software without specific prior written permission
|
||
.\"
|
||
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
||
.\"
|
||
.\" %FreeBSD: src/bin/expr/expr.1,v 1.29 2007/03/04 19:52:07 ru Exp %
|
||
.\" $FreeBSDru: frdp/doc/ru_RU.KOI8-R/man/man1/expr.1,v 1.2 2007/11/20 13:50:08 ru Exp $
|
||
.\" $FreeBSD$
|
||
.\"
|
||
.Dd 12 ÉÀÌÑ 2004
|
||
.Dt EXPR 1
|
||
.Os
|
||
.Sh îáú÷áîéå
|
||
.Nm expr
|
||
.Nd ×ÙÞÉÓÌÉÔØ ×ÙÒÁÖÅÎÉÅ
|
||
.Sh óéîôáëóéó
|
||
.Nm
|
||
.Op Fl e
|
||
.Ar ×ÙÒÁÖÅÎÉÅ
|
||
.Sh ïðéóáîéå
|
||
õÔÉÌÉÔÁ
|
||
.Nm
|
||
×ÙÞÉÓÌÑÅÔ
|
||
.Ar ×ÙÒÁÖÅÎÉÅ
|
||
É ÐÉÛÅÔ ÒÅÚÕÌØÔÁÔ × ÓÔÁÎÄÁÒÔÎÙÊ ×Ù×ÏÄ.
|
||
.Pp
|
||
÷ÓÅ ÏÐÅÒÁÔÏÒÙ É ÏÐÅÒÁÎÄÙ ÄÏÌÖÎÙ ÐÅÒÅÄÁ×ÁÔØÓÑ, ËÁË ÏÔÄÅÌØÎÙÅ ÁÒÇÕÍÅÎÔÙ.
|
||
îÅËÏÔÏÒÙÅ ÏÐÅÒÁÔÏÒÙ ÉÍÅÀÔ ÓÐÅÃÉÁÌØÎÏÅ ÚÎÁÞÅÎÉÅ ÄÌÑ ËÏÍÁÎÄÎÙÈ
|
||
ÉÎÔÅÒÐÒÅÔÁÔÏÒÏ× É, ÓÌÅÄÏ×ÁÔÅÌØÎÏ, ÄÏÌÖÎÙ ÚÁËÌÀÞÁÔØÓÑ × ËÁ×ÙÞËÉ.
|
||
÷ÓÅ ÃÅÌÏÞÉÓÌÅÎÎÙÅ ÏÐÅÒÁÎÄÙ ÉÎÔÅÒÐÒÅÔÉÒÕÀÔÓÑ ËÁË ÞÉÓÌÁ Ó ÏÓÎÏ×ÁÎÉÅÍ 10.
|
||
.Pp
|
||
áÒÉÆÍÅÔÉÞÅÓËÉÅ ÏÐÅÒÁÃÉÉ ×ÙÐÏÌÎÑÀÔÓÑ, ÉÓÐÏÌØÚÕÑ ÃÅÌÏÞÉÓÌÅÎÎÕÀ ÚÎÁËÏ×ÕÀ
|
||
ÍÁÔÅÍÁÔÉËÕ.
|
||
åÓÌÉ ÕËÁÚÁÎ ÆÌÁÇ
|
||
.Fl e ,
|
||
ÁÒÉÆÍÅÔÉËÁ ÉÓÐÏÌØÚÕÅÔ ÔÉÐ ÄÁÎÎÙÈ
|
||
.Vt intmax_t
|
||
ÑÚÙËÁ C (ÓÁÍÙÊ ÂÏÌØÛÏÊ ÃÅÌÏÞÉÓÌÅÎÎÙÊ ÔÉÐ ÄÁÎÎÙÈ), É
|
||
.Nm
|
||
ÓÍÏÖÅÔ ÏÂÎÁÒÕÖÉÔØ ÁÒÉÆÍÅÔÉÞÅÓËÏÅ ÐÅÒÅÐÏÌÎÅÎÉÅ É ×ÅÒÎÕÔØ ÉÎÄÉËÁÔÏÒ ÏÛÉÂËÉ.
|
||
åÓÌÉ ÕËÁÚÁÎ ÞÉÓÌÏ×ÏÊ ÏÐÅÒÁÎÄ, Ñ×ÌÑÀÝÉÊÓÑ ÎÁÓÔÏÌØËÏ ÂÏÌØÛÉÍ, ÞÔÏ ÐÒÏÉÓÈÏÄÉÔ
|
||
ÐÅÒÅÐÏÌÎÅÎÉÅ ÐÒÉ ËÏÎ×ÅÒÔÁÃÉÉ ÅÇÏ × ÃÅÌÏÅ ÞÉÓÌÏ, ÔÏ ÏÎ ÏÂÒÁÂÁÔÙ×ÁÅÔÓÑ ËÁË
|
||
ÓÔÒÏËÁ.
|
||
åÓÌÉ ÆÌÁÇ
|
||
.Fl e
|
||
ÎÅ ÕËÁÚÁÎ, ÔÏ ÐÅÒÅÐÏÌÎÅÎÉÅ × ÒÅÚÕÌØÔÁÔÅ ÁÒÉÆÍÅÔÉÞÅÓËÉÈ ×ÙÞÉÓÌÅÎÉÊ
|
||
É ÓÉÎÔÁËÓÉÞÅÓËÏÇÏ ÒÁÚÂÏÒÁ ÃÅÌÏÞÉÓÌÅÎÎÙÈ ÁÒÇÕÍÅÎÔÏ×
|
||
ÂÕÄÅÔ ÐÒÏÉÓÈÏÄÉÔØ ÂÅÚ ÄÉÁÇÎÏÓÔÉËÉ É × ÓÏÏÔ×ÅÔÓÔ×ÉÉ Ó ÐÒÁ×ÉÌÁÍÉ
|
||
ÓÔÁÎÄÁÒÔÁ ÑÚÙËÁ C, ÉÓÐÏÌØÚÕÑ ÔÉÐ ÄÁÎÎÙÈ
|
||
.Vt long .
|
||
.Pp
|
||
ïÐÅÒÁÔÏÒÙ ÐÅÒÅÞÉÓÌÅÎÙ ÎÉÖÅ × ÐÏÒÑÄËÅ Õ×ÅÌÉÞÅÎÉÑ ÐÒÉÏÒÉÔÅÔÁ.
|
||
÷ÓÅ ÏÎÉ ×ÙÞÉÓÌÑÀÔÓÑ ÓÌÅ×Á ÎÁÐÒÁ×Ï.
|
||
ïÐÅÒÁÔÏÒÙ Ó ÏÄÉÎÁËÏ×ÙÍ ÐÒÉÏÒÉÔÅÔÏÍ ÓÇÒÕÐÐÉÒÏ×ÁÎÙ ×ÎÕÔÒÉ ÓÉÍ×ÏÌÏ×
|
||
.Ql {
|
||
É
|
||
.Ql } .
|
||
.Bl -tag -width indent
|
||
.It Ar ×ÙÒÁÖÅÎÉÅ1 Li | Ar ×ÙÒÁÖÅÎÉÅ2
|
||
÷ÅÒÎÕÔØ ×ÙÞÉÓÌÅÎÎÏÅ ÚÎÁÞÅÎÉÅ ×ÙÒÁÖÅÎÉÑ
|
||
.Ar ×ÙÒÁÖÅÎÉÅ1 ,
|
||
ÅÓÌÉ ÏÎÏ ÎÅ Ñ×ÌÑÅÔÓÑ ÎÉ ÐÕÓÔÏÊ ÓÔÒÏËÏÊ, ÎÉ ÎÕÌ£Í.
|
||
éÎÁÞÅ ×ÏÚ×ÒÁÝÁÅÔÓÑ ÚÎÁÞÅÎÉÅ
|
||
.Ar ×ÙÒÁÖÅÎÉÅ2 .
|
||
.It Ar ×ÙÒÁÖÅÎÉÅ1 Li & Ar ×ÙÒÁÖÅÎÉÅ2
|
||
÷ÅÒÎÕÔØ ÚÎÁÞÅÎÉÅ ×ÙÒÁÖÅÎÉÑ
|
||
.Ar ×ÙÒÁÖÅÎÉÅ1 ,
|
||
ÅÓÌÉ ÎÉ ÏÄÎÏ ÉÚ ×ÙÒÁÖÅÎÉÊ ÐÒÉ ×ÙÞÉÓÌÅÎÉÉ ÎÅ ÓÔÁÎÏ×ÉÔÓÑ ÒÁ×ÎÙÍ
|
||
ÐÕÓÔÏÊ ÓÔÒÏËÅ ÉÌÉ ÎÕÌÀ.
|
||
÷ ÐÒÏÔÉ×ÎÏÍ ÓÌÕÞÁÅ, ×ÏÚ×ÒÁÝÁÅÔÓÑ ÎÏÌØ.
|
||
.It Ar ×ÙÒÁÖÅÎÉÅ1 Li "{=, >, >=, <, <=, !=}" Ar ×ÙÒÁÖÅÎÉÅ2
|
||
÷ÅÒÎÕÔØ ÒÅÚÕÌØÔÁÔÙ ÃÅÌÏÞÉÓÌÅÎÎÏÇÏ ÓÒÁ×ÎÅÎÉÑ, ÅÓÌÉ ÏÂÁ ÁÒÇÕÍÅÎÔÁ Ñ×ÌÑÀÔÓÑ
|
||
ÃÅÌÙÍÉ ÞÉÓÌÁÍÉ.
|
||
÷ ÐÒÏÔÉ×ÎÏÍ ÓÌÕÞÁÅ ×ÏÚ×ÒÁÝÁÅÔ ÒÅÚÕÌØÔÁÔÙ ÓÒÁ×ÎÅÎÉÑ ÓÔÒÏË, ÉÓÐÏÌØÚÕÑ
|
||
ÚÁ×ÉÓÑÝÕÀ ÏÔ ÒÅÇÉÏÎÁÌØÎÙÈ ÎÁÓÔÒÏÅË ÐÏÓÌÅÄÏ×ÁÔÅÌØÎÏÓÔØ ÓÒÁ×ÎÅÎÉÑ.
|
||
òÅÚÕÌØÔÁÔ ËÁÖÄÏÇÏ ÓÒÁ×ÎÅÎÉÑ ÒÁ×ÅÎ 1, ÅÓÌÉ ÕËÁÚÁÎÎÏÅ ÓÏÏÔÎÏÛÅÎÉÅ ÓÐÒÁ×ÅÄÌÉ×Ï, ÉÌÉ
|
||
0, ÅÓÌÉ ÓÏÏÔÎÏÛÅÎÉÅ ÌÏÖÎÏ.
|
||
.It Ar ×ÙÒÁÖÅÎÉÅ1 Li "{+, -}" Ar ×ÙÒÁÖÅÎÉÅ2
|
||
÷ÅÒÎÕÔØ ÒÅÚÕÌØÔÁÔÙ ÓÌÏÖÅÎÉÑ ÉÌÉ ×ÙÞÉÔÁÎÉÑ ÃÅÌÏÞÉÓÌÅÎÎÙÈ ÁÒÇÕÍÅÎÔÏ×.
|
||
.It Ar ×ÙÒÁÖÅÎÉÅ1 Li "{*, /, %}" Ar ×ÙÒÁÖÅÎÉÅ2
|
||
÷ÅÒÎÕÔØ ÒÅÚÕÌØÔÁÔÙ ÕÍÎÏÖÅÎÉÑ, ÃÅÌÏÞÉÓÌÅÎÎÏÇÏ ÄÅÌÅÎÉÑ,
|
||
ÉÌÉ ÏÓÔÁÔËÁ ÏÔ ÄÅÌÅÎÉÑ ÃÅÌÏÞÉÓÌÅÎÎÙÈ ÁÒÇÕÍÅÎÔÏ×.
|
||
.It Ar ×ÙÒÁÖÅÎÉÅ1 Li : Ar ×ÙÒÁÖÅÎÉÅ2
|
||
ïÐÅÒÁÔÏÒ
|
||
.Dq Li \&:
|
||
ÓÏÐÏÓÔÁ×ÌÑÅÔ
|
||
.Ar ×ÙÒÁÖÅÎÉÅ1
|
||
Ó
|
||
.Ar ×ÙÒÁÖÅÎÉÅ2 ,
|
||
ËÏÔÏÒÏÅ ÄÏÌÖÎÏ ÂÙÔØ ÂÁÚÏ×ÙÍ ÒÅÇÕÌÑÒÎÙÍ ×ÙÒÁÖÅÎÉÅÍ.
|
||
òÅÇÕÌÑÒÎÏÅ ×ÙÒÁÖÅÎÉÅ ÐÒÉ×ÑÚÙ×ÁÅÔÓÑ Ë ÎÁÞÁÌÕ ÓÔÒÏËÉ
|
||
ÐÏÄÒÁÚÕÍÅ×ÁÀÝÉÍÓÑ
|
||
.Dq Li ^ .
|
||
.Pp
|
||
åÓÌÉ ÓÏÐÏÓÔÁ×ÌÅÎÉÅ ÐÒÏÈÏÄÉÔ ÕÄÁÞÎÏ É ÛÁÂÌÏÎ ÓÏÄÅÒÖÉÔ ÐÏ
|
||
ËÒÁÊÎÅÊ ÍÅÒÅ ÏÄÎÏ ÐÏÄ×ÙÒÁÖÅÎÉÅ
|
||
.Dq Li "\e(...\e)"
|
||
ÒÅÇÕÌÑÒÎÏÇÏ ×ÙÒÁÖÅÎÉÑ,
|
||
ÔÏ ×ÏÚ×ÒÁÝÁÅÔÓÑ ÓÔÒÏËÁ, ÓÏÏÔ×ÅÔÓÔ×ÕÀÝÁÑ
|
||
.Dq Li \e1 .
|
||
÷ ÐÒÏÔÉ×ÎÏÍ ÓÌÕÞÁÅ ÏÐÅÒÁÔÏÒ ÓÏÐÏÓÔÁ×ÌÅÎÉÑ ×ÏÚ×ÒÁÝÁÅÔ
|
||
ËÏÌÉÞÅÓÔ×Ï ÓÏÏÔ×ÅÔÓÔ×ÕÀÝÉÈ ÛÁÂÌÏÎÕ ÓÉÍ×ÏÌÏ×.
|
||
åÓÌÉ ÓÏÐÏÓÔÁ×ÌÅÎÉÅ ÚÁ×ÅÒÛÁÅÔÓÑ ÎÅÕÄÁÞÎÏ É ÛÁÂÌÏÎ ÓÏÄÅÒÖÉÔ ÐÏÄ×ÙÒÁÖÅÎÉÅ ÒÅÇÕÌÑÒÎÏÇÏ
|
||
×ÙÒÁÖÅÎÉÑ, ÔÏ ×ÏÚ×ÒÁÝÁÅÔÓÑ ÐÕÓÔÁÑ ÓÔÒÏËÁ.
|
||
÷ ÐÒÏÔÉ×ÎÏÍ ÓÌÕÞÁÅ ×ÏÚ×ÒÁÝÁÅÔÓÑ 0.
|
||
.El
|
||
.Pp
|
||
ëÒÕÇÌÙÅ ÓËÏÂËÉ ÉÓÐÏÌØÚÕÀÔÓÑ ÄÌÑ ÇÒÕÐÐÉÒÏ×ÁÎÉÑ × ÐÒÉ×ÙÞÎÏÊ ÍÁÎÅÒÅ.
|
||
.Pp
|
||
õÔÉÌÉÔÁ
|
||
.Nm
|
||
ÎÅ ÄÅÌÁÅÔ ÌÅËÓÉÞÅÓËÏÇÏ ÒÁÚÌÉÞÉÑ ÍÅÖÄÕ ÁÒÇÕÍÅÎÔÁÍÉ, ËÏÔÏÒÙÅ ÍÏÇÕÔ ÂÙÔØ
|
||
ÏÐÅÒÁÔÏÒÁÍÉ É ÁÒÇÕÍÅÎÔÁÍÉ, ËÏÔÏÒÙÅ ÍÏÇÕÔ Ñ×ÌÑÔØÓÑ ÏÐÅÒÁÎÄÁÍÉ.
|
||
ïÐÅÒÁÎÄ, ÌÅËÓÉÞÅÓËÉ ÉÄÅÎÔÉÞÎÙÊ ÏÐÅÒÁÔÏÒÕ ÂÕÄÅÔ ÒÁÓÓÍÁÔÒÉ×ÁÔØÓÑ, ËÁË
|
||
ÓÉÎÔÁËÓÉÞÅÓËÁÑ ÏÛÉÂËÁ.
|
||
óÍÏÔÒÉÔÅ ÐÒÉÍÅÒÙ ÎÉÖÅ ÄÌÑ ÏÂÈÏÄÎÏÇÏ ÐÕÔÉ.
|
||
.Pp
|
||
óÉÎÔÁËÓÉÓ ËÏÍÁÎÄÙ
|
||
.Nm
|
||
× ÏÂÝÅÍ Ñ×ÌÑÅÔÓÑ ÉÓÔÏÒÉÞÅÓËÉ ÓÌÏÖÉ×ÛÉÍÓÑ É ÎÅÕÄÏÂÎÙÍ.
|
||
÷ ÎÏ×ÙÈ ÐÒÉÌÏÖÅÎÉÑÈ ×ÍÅÓÔÏ
|
||
.Nm
|
||
ÒÅËÏÍÅÎÄÕÅÔÓÑ ÉÓÐÏÌØÚÏ×ÁÔØ ÁÒÉÆÍÅÔÉËÕ ËÏÍÁÎÄÎÏÇÏ ÉÎÔÅÒÐÒÅÔÁÔÏÒÁ.
|
||
.Ss óÏ×ÍÅÓÔÉÍÏÓÔØ Ó ÐÒÅÄÙÄÕÝÉÍÉ ÒÅÁÌÉÚÁÃÉÑÍÉ
|
||
åÓÌÉ ÎÅ ×ËÌÀÞÅÎÁ ÓÏ×ÍÅÓÔÉÍÏÓÔØ Ó
|
||
.Fx
|
||
4.x,
|
||
ÜÔÁ ×ÅÒÓÉÑ
|
||
.Nm
|
||
ÐÒÉÄÅÒÖÉ×ÁÅÔÓÑ ÕËÁÚÁÎÉÊ Ë ÓÉÎÔÁËÓÉÓÕ ÕÔÉÌÉÔ, ÏÐÒÅÄÅÌ£ÎÎÙÈ ×
|
||
.Tn POSIX ,
|
||
ËÏÔÏÒÙÅ ÔÒÅÂÕÀÔ, ÞÔÏÂÙ ×ÅÄÕÝÉÊ ÁÒÇÕÍÅÎÔ, ÎÁÞÉÎÁÀÝÉÊÓÑ ÓÏ ÚÎÁËÁ ÍÉÎÕÓ
|
||
ÒÁÓÓÍÁÔÒÉ×ÁÌÓÑ, ËÁË ÏÐÃÉÑ Ë ÐÒÏÇÒÁÍÍÅ.
|
||
óÔÁÎÄÁÒÔÎÁÑ ÓÉÎÔÁËÓÉÞÅÓËÁÑ ÓÔÒÕËÔÕÒÁ
|
||
.Fl Fl
|
||
ÍÏÖÅÔ ÂÙÔØ ÉÓÐÏÌØÚÏ×ÁÎÁ ÄÌÑ ÐÒÅÄÏÔ×ÒÁÝÅÎÉÑ ÔÁËÏÊ ÏÂÒÁÂÏÔËÉ.
|
||
ôÅÍ ÎÅ ÍÅÎÅÅ, ÍÎÏÇÉÅ ÉÚ ÒÁÎÎÉÈ ×ÅÒÓÉÊ
|
||
.Nm ,
|
||
×ËÌÀÞÁÑ ÔÕ, ÞÔÏ ÂÙÌÁ × ÐÒÅÄÙÄÕÝÉÈ ×ÅÒÓÉÑÈ
|
||
.Fx ,
|
||
ÎÅ ÒÁÚÒÅÛÁÌÉ ÉÓÐÏÌØÚÏ×ÁÔØ ÄÁÎÎÙÊ ÓÉÎÔÁËÓÉÓ.
|
||
óÍÏÔÒÉÔÅ ÎÉÖÅ ÐÒÉÍÅÒÙ ÐÅÒÅÎÏÓÉÍÙÈ ÓÐÏÓÏÂÏ× ÄÌÑ ÇÁÒÁÎÔÉÒÏ×ÁÎÉÑ ËÏÒÒÅËÔÎÏÊ
|
||
ÉÎÔÅÒÐÒÅÔÁÃÉÉ.
|
||
þÔÏÂÙ ÏÐÒÅÄÅÌÉÔØ, ÄÏÌÖÅÎ ÌÉ ÂÙÔØ ÁËÔÉ×ÉÒÏ×ÁÎ ÒÅÖÉÍ ÓÏ×ÍÅÓÔÉÍÏÓÔÉ,
|
||
ÉÓÐÏÌØÚÕÅÔÓÑ ÆÕÎËÃÉÑ
|
||
.Xr check_utility_compat 3
|
||
(ÇÄÅ × ËÁÞÅÓÔ×Å ÁÒÇÕÍÅÎÔÁ
|
||
.Fa utility
|
||
ÉÓÐÏÌØÚÕÅÔÓÑ
|
||
.Dq Li expr ) .
|
||
üÔÁ ×ÏÚÍÏÖÎÏÓÔØ ÐÒÅÄÎÁÚÎÁÞÅÎÁ ÄÌÑ ÉÓÐÏÌØÚÏ×ÁÎÉÑ × ËÁÞÅÓÔ×Å
|
||
×ÓÐÏÍÏÇÁÔÅÌØÎÏÇÏ ÓÒÅÄÓÔ×Á ÐÒÉ ÐÅÒÅÎÏÓÅ É ÏÔÌÁÄËÅ, ËÏÇÄÁ
|
||
.Nm
|
||
ÉÓÐÏÌØÚÕÅÔÓÑ × ÓÌÏÖÎÙÈ ÓÃÅÎÁÒÉÑÈ, ËÏÔÏÒÙÅ ÎÅ ÍÏÇÕÔ ÂÙÔØ ÌÅÇËÏ
|
||
ÐÅÒÅÄÅÌÁÎÙ ÔÁË, ÞÔÏÂÙ ÉÚÂÅÖÁÔØ ÉÓÐÏÌØÚÏ×ÁÎÉÑ ÎÅÐÅÒÅÎÏÓÉÍÙÈ ËÏÎÓÔÒÕËÃÉÊ.
|
||
÷ËÌÀÞÅÎÉÅ ÒÅÖÉÍÁ ÓÏ×ÍÅÓÔÉÍÏÓÔÉ
|
||
ÔÁËÖÅ ËÏÓ×ÅÎÎÏ ÁËÔÉ×ÉÒÕÅÔ ÏÐÃÉÀ
|
||
.Fl e ,
|
||
ÔÁË ËÁË ÜÔÏ ÓÏÏÔ×ÅÔÓÔ×ÕÅÔ ÉÓÔÏÒÉÞÅÓËÏÍÕ ÐÏ×ÅÄÅÎÉÀ
|
||
.Nm
|
||
×Ï
|
||
.Fx .
|
||
ðÏ ÉÓÔÏÒÉÞÅÓËÉÍ ÐÒÉÞÉÎÁÍ, ÕÓÔÁÎÏ×ËÁ ÐÅÒÅÍÅÎÎÏÊ ÏËÒÕÖÅÎÉÑ
|
||
.Ev EXPR_COMPAT
|
||
ÔÁËÖÅ ×ËÌÀÞÁÅÔ ÒÅÖÉÍ ÓÏ×ÍÅÓÔÉÍÏÓÔÉ.
|
||
.Sh ïëòõöåîéå
|
||
.Bl -tag -width ".Ev EXPR_COMPAT"
|
||
.It Ev EXPR_COMPAT
|
||
åÓÌÉ ÐÅÒÅÍÅÎÎÁÑ ÏÐÒÅÄÅÌÅÎÁ, ×ËÌÀÞÉÔØ ÒÅÖÉÍ ÓÏ×ÍÅÓÔÉÍÏÓÔÉ.
|
||
.El
|
||
.Sh óôáôõó úá÷åòûåîéñ
|
||
õÔÉÌÉÔÁ
|
||
.Nm
|
||
ÚÁ×ÅÒÛÁÅÔÓÑ Ó ÏÄÎÉÍ ÉÚ ÓÌÅÄÕÀÝÉÈ ÓÔÁÔÕÓÏ×:
|
||
.Bl -tag -width indent -compact
|
||
.It 0
|
||
÷ÙÒÁÖÅÎÉÅ ÎÅ Ñ×ÌÑÅÔÓÑ ÎÉ ÐÕÓÔÏÊ ÓÔÒÏËÏÊ, ÎÉ ÎÕÌ£Í.
|
||
.It 1
|
||
÷ÙÒÁÖÅÎÉÅ Ñ×ÌÑÅÔÓÑ ÐÕÓÔÏÊ ÓÔÒÏËÏÊ ÉÌÉ ÎÕÌ£Í.
|
||
.It 2
|
||
÷ÙÒÁÖÅÎÉÅ ÎÅËÏÒÒÅËÔÎÏ.
|
||
.El
|
||
.Sh ðòéíåòù
|
||
.Bl -bullet
|
||
.It
|
||
÷ ÓÌÅÄÕÀÝÅÍ ÐÒÉÍÅÒÅ (ÉÓÐÏÌØÚÕÅÔÓÑ ÓÉÎÔÁËÓÉÓ
|
||
.Xr sh 1 )
|
||
ÄÏÂÁ×ÌÑÅÔÓÑ ÅÄÉÎÉÃÁ Ë ÐÅÒÅÍÅÎÎÏÊ
|
||
.Va a :
|
||
.Dl "a=$(expr $a + 1)"
|
||
.It
|
||
üÔÁ ËÏÍÁÎÄÁ ÎÅ ×ÙÐÏÌÎÉÔÓÑ, ÅÓÌÉ ÚÎÁÞÅÎÉÅ
|
||
.Va a
|
||
Ñ×ÌÑÅÔÓÑ ÏÔÒÉÃÁÔÅÌØÎÙÍ ÞÉÓÌÏÍ.
|
||
þÔÏÂÙ ÐÒÅÄÏÔ×ÒÁÔÉÔØ ÏÂÒÁÂÏÔËÕ ÏÔÒÉÃÁÔÅÌØÎÙÈ ÚÎÁÞÅÎÉÊ
|
||
.Va a
|
||
× ËÁÞÅÓÔ×Å ÏÐÃÉÊ ËÏÍÁÎÄÅ
|
||
.Nm
|
||
ÍÏÖÎÏ ÐÒÅÏÂÒÁÚÏ×ÁÔØ ×ÙÒÁÖÅÎÉÅ ÔÁË:
|
||
.Dl "a=$(expr 1 + $a)"
|
||
.It
|
||
÷ ÏÂÝÅÍ ÓÌÕÞÁÅ, ÚÁËÌÀÞÁÊÔÅ × ÓËÏÂËÉ ×ÏÚÍÏÖÎÙÅ ÏÔÒÉÃÁÔÅÌØÎÙÅ ÚÎÁÞÅÎÉÑ:
|
||
.Dl "a=$(expr \e( $a \e) + 1)"
|
||
.It
|
||
÷ ÜÔÏÍ ÐÒÉÍÅÒÅ ×Ù×ÏÄÉÔÓÑ ÉÍÑ ÆÁÊÌÁ, ×ÙÞÌÅÎÅÎÎÏÇÏ ÉÚ ÐÕÔÉ, ÈÒÁÎÑÝÅÇÏÓÑ
|
||
× ÐÅÒÅÍÅÎÎÏÊ
|
||
.Va a .
|
||
ôÁË ËÁË
|
||
.Va a
|
||
ÍÏÖÅÔ ÓÏÄÅÒÖÁÔØ ÐÕÔØ
|
||
.Pa / ,
|
||
ÔÏ ÎÅÏÂÈÏÄÉÍÏ ÐÒÅÄÏÔ×ÒÁÔÉÔØ ÅÇÏ ÏÂÒÁÂÏÔËÕ × ËÁÞÅÓÔ×Å ÏÐÅÒÁÔÏÒÁ ÄÅÌÅÎÉÑ.
|
||
ðÁÒÁ ÓÉÍ×ÏÌÏ×
|
||
.Li //
|
||
ÒÁÚÒÅÛÁÅÔ ÜÔÕ ÎÅÏÄÎÏÚÎÁÞÎÏÓÔØ.
|
||
.Dl "expr \*q//$a\*q \&: '.*/\e(.*\e)'"
|
||
.El
|
||
.Pp
|
||
÷ ÓÌÅÄÕÀÝÉÈ ÐÒÉÍÅÒÁÈ ×Ù×ÏÄÉÔÓÑ ËÏÌÉÞÅÓÔ×Ï ÓÉÍ×ÏÌÏ× × ÐÅÒÅÍÅÎÎÏÊ
|
||
.Va a .
|
||
é ÓÎÏ×Á, ÅÓÌÉ
|
||
.Va a
|
||
ÍÏÖÅÔ ÎÁÞÉÎÁÔØÓÑ Ó ÄÅÆÉÓÁ, ÔÏ ÎÅÏÂÈÏÄÉÍÏ ÐÒÅÄÏÔ×ÒÁÔÉÔØ ÅÇÏ ÏÂÒÁÂÏÔËÕ ×
|
||
ËÁÞÅÓÔ×Å ÏÐÃÉÉ Ë
|
||
.Nm .
|
||
.Bl -bullet
|
||
.It
|
||
åÓÌÉ ËÏÍÁÎÄÁ
|
||
.Nm
|
||
ÕÄÏ×ÌÅÔ×ÏÒÑÅÔ ÓÔÁÎÄÁÒÔÕ
|
||
.St -p1003.1-2001 ,
|
||
ÔÏ ÓÄÅÌÁÔØ ÜÔÏ ÐÒÏÓÔÏ:
|
||
.Dl "expr -- \*q$a\*q \&: \*q.*\*q"
|
||
.It
|
||
äÌÑ ÐÅÒÅÎÏÓÉÍÏÓÔÉ ÎÁ ÂÏÌÅÅ ÓÔÁÒÙÅ ÓÉÓÔÅÍÙ ÔÒÅÂÕÅÔÓÑ
|
||
ÂÏÌÅÅ ÓÌÏÖÎÁÑ ËÏÍÁÎÄÁ:
|
||
.Dl "expr \e( \*qX$a\*q \&: \*q.*\*q \e) - 1"
|
||
.El
|
||
.Sh óíïôòé ôáëöå
|
||
.Xr sh 1 ,
|
||
.Xr test 1 ,
|
||
.Xr check_utility_compat 3
|
||
.Sh óôáîäáòôù
|
||
õÔÉÌÉÔÁ
|
||
.Nm
|
||
ÓÏÏÔ×ÅÔÓÔ×ÕÅÔ ÓÔÁÎÄÁÒÔÕ
|
||
.St -p1003.1-2001 ,
|
||
ÅÓÌÉ ÎÅ ÁËÔÉ×ÉÒÏ×ÁÎ ÒÅÖÉÍ ÓÏ×ÍÅÓÔÉÍÏÓÔÉ.
|
||
æÌÁÇ
|
||
.Fl e
|
||
Ñ×ÌÑÅÔÓÑ ÒÁÓÛÉÒÅÎÉÅÍ ÓÔÁÎÄÁÒÔÁ.
|