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.\" This manpage is Copyright (C) 1992 Drew Eckhardt;
.\"                               1993 Michael Haardt, Ian Jackson.
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.\" manual page may be incorrect or out-of-date.  The author(s) assume no
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.\" Formatted or processed versions of this manual, if unaccompanied by
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.\" Modified Sat Jul 24 13:35:59 1993 by Rik Faith <faith@cs.unc.edu>
.\" Modified Sun Nov 28 17:19:01 1993 by Rik Faith <faith@cs.unc.edu>
.\" Modified Sat Jan 13 12:58:08 1996 by Michael Haardt
.\"   <michael@cantor.informatik.rwth-aachen.de>
.\" Modified Sun Jul 21 18:59:33 1996 by Andries Brouwer <aeb@cwi.nl>
.\" 2001-12-13 added remark by Zack Weinberg
.\"
.\" Japanese Version Copyright (c) 1997 HANATAKA Shinya
.\"         all rights reserved.
.\" Translated Tue Mar  4 00:18:20 JST 1997
.\"         by HANATAKA Shinya <hanataka@abyss.rim.or.jp>
.\" Updated & Modified Wed Jun 13 20:57:55 JST 2001
.\"         by Yuichi SATO <ysato@h4.dion.ne.jp>
.\" Updated Mon Jun 25 JST 2001 by Kentaro Shirakata <argrath@ub32.org>
.\" Updated Fri Dec 21 JST 2001 by Kentaro Shirakata <argrath@ub32.org>
.\" Updated 2002-09-24 by Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
.\"
.\"WORD:	descriptor		ǥץ
.\"WORD:	buffer			Хåե
.\"WORD:	file system		ե롦ƥ
.\"WORD:	object			֥
.\"WORD:	pipe			ѥ
.\"WORD:	socket			å
.\"WORD:	signal			ʥ
.\"WORD:	catch			(catch)
.\"WORD:	block			ػ(block)
.\"WORD:	interrupt		
.\"WORD:	non-blocking I/O	 I/O
.\"WORD:	device			ǥХ
.\"WORD:	low-level I/O           ٥ I/O
.\"
.TH WRITE 2 2001-12-13 "Linux 2.0.32" "Linux Programmer's Manual"
.SH ̾
write \- ե롦ǥץ (file descriptor) ˽񤭹
.SH 
.B #include <unistd.h>
.sp
.BI "ssize_t write(int " fd ", const void *" buf ", size_t " count );
.SH 
.B write

.I buf
ǼХåե
.I count
ХȤޤǤե롦ǥץ
.I fd
ˤäƻȤեؤȽ񤭹ࡣ
POSIX  \fBwrite()\fP Ԥʤ줿˼¹Ԥ \fBread()\fP 
ǡ֤Ȥ׵ᤷƤ롣
ƤΥե롦ƥ (file system) 
POSIX ǤϤʤȤդ뤳ȡ
.SH ֤
ˤϡ񤭹ޤ줿Хȿ֤
(ϲ񤭹ޤʤäȤ򼨤)
顼ʤ \-1 ֤졢\fIerrno\fP Ŭڤꤵ롣
⤷ \fIcount\fP ǥե롦ǥץ̾Υե
(regular file) 򻲾ȤƤϡ¾˲αƶʤ 0 ֤롣
üեξˤϡ̤˸ߴϤʤ
.SH 顼
.TP
.B EAGAIN
.B O_NONBLOCK
Ѥ (non-blocking) I/O 򤵤Ƥ뤬
񤭹ߤػ (block) 줿
.TP
.B EBADF
.I fd
ͭʥե롦ǥץǤʤ񤭹ߤΤ˥ץ
(open) Ƥʤ
.TP
.B EFAULT
.I buf
ǽʥɥ쥹 (address space) γˤ롣
.TP
.B EFBIG
κե륵ޤϥץΥե륵¤
Ķƥե˽񤭹⤦Ȥ
ޤϵĤ줿եåͤθ³Ķΰ֤
񤭹⤦Ȥ
.TP
.B EINTR
Υǡ񤫤ʤ֤˥ʥˤäƳޤ줿 (interrupt)
.TP
.B EINVAL
.I fd
񤭹ߤŬڤʥ֥ (object) 򻲾ȤƤ롣
.TP
.B EIO
inode ν٥ (low-level) I/O 顼ȯ
.TP
.B ENOSPC
.I fd
ˤäƻȤեޤǥХ (device) ˽ʬʶʤ
.TP
.B EPIPE
.I fd
ѥ (pipe) å (socket) ³Ƥꡢ
ȿ¦ (ɤ߹¦)  (close) Ƥ롣
줬ȯˤϡ񤭹ߤԤʤץ
.B SIGPIPE
ʥ (signal)롣
(äơץबΥʥ (catch)ػ (block)̵ (ignore)
Τߡwrite ֤ͤ򻲾ȤǤ)
.PP
.I fd
³줿֥ȤˤäƤϡ¾Υ顼뤫⤷ʤ
.SH 
SVr4, SVID, POSIX, X/OPEN, 4.3BSD.
SVr4 ˤ¾ EDEADLK, ENOLCK, ENOLNK, 
ENOSR, ENXIO, ERANGE 顼ˤĤƤεҤ롣
SVr4 Ǥ write ޤȡǡ񤭹ޤľǤϤʤ
λ EINTR ֤롣
.SH 
.B write
֤äƤƤ⡢ǡǥ˵Ͽ줿Ȥ
ݾڤΤǤϤʤ
ºݡǡΤΥڡݤ줿ȤݾڤʤȤ
Хäݤ⤢롣
μ¤ˤͣˡϡ
ƤΥǡ write 
.BR fsync (2)
ƤӽФȤǤ롣
.SH Ϣ
.BR close (2),
.BR fcntl (2),
.BR fsync (2),
.BR ioctl (2),
.BR lseek (2),
.BR open (2),
.BR read (2),
.BR select (2),
.BR fwrite (3),
.BR writev (3)