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[linuxjm/jm.git] / manual / gnumaniak / draft / man1 / df.1

.\" Copyright Andries Brouwer, A. Wik 1998, Ragnar Hojland Espinosa 1998-2002
.\"
.\" This file may be copied under the conditions described
.\" in the LDP GENERAL PUBLIC LICENSE, Version 1, September 1998
.\" that should have been distributed together with this file.
.\"
.\" Japanese Version Copyright (c) 1999-2003 Yuichi SATO
.\"         all rights reserved.                                               
.\" Translated Sat Oct 16 14:35:31 JST 1999
.\"         by Yuichi SATO <sato@complex.eng.hokudai.ac.jp>
.\" Updated & Modified Sun Feb 16 17:41:57 JST 2003
.\"         by Yuichi SATO <ysato444@yahoo.co.jp>
.\"
.\"WORD:        report          ɽ¼¨
.\"WORD:        disk space      ¥Ç¥£¥¹¥¯ÍÆÎÌ
.\"
.TH DF 1 "18 June 2002" "GNU fileutils 4.1"
.\"O .SH NAME
.SH ̾Á°
.\"O df \- report filesystem disk space usage
df \- ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥Ç¥£¥¹¥¯ÍÆÎ̤λÈÍѾõ¶·¤òɽ¼¨¤¹¤ë
.\"O .SH SYNOPSIS
.SH ½ñ¼°
.BI "df [" options "] [" file... ]
.sp
.\"O POSIX options:
POSIX ¥ª¥×¥·¥ç¥ó:
.B [\-kP]
.sp
.\"O GNU options (shortest form):
GNU ¥ª¥×¥·¥ç¥ó (´Êά·Á¼°):
.B [\-ahiklmvHPT]
.BI "[\-t " fstype ]
.BI "[\-x " fstype ]
.B [\-\-block\-size=\fISIZE\fB]
.B [\-\-no\-sync]
.B [\-\-sync]
.B "[\-\-help] [\-\-version] [\-\-]"
.\"O .SH DESCRIPTION
.SH ÀâÌÀ
.\"O .B df
.\"O reports the amount of disk space used and available on
.\"O filesystems.
.B df
¤Ï³Æ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ë¤ª¤¤¤Æ¡¢
¤¹¤Ç¤Ë»ÈÍÑÃæ¤Î¥Ç¥£¥¹¥¯¤ÎÎ̤ȻÈÍѲÄǽ¤Ê¥Ç¥£¥¹¥¯¤ÎÎ̤òɽ¼¨¤¹¤ë¡£
.PP
.\"O With no arguments,
.\"O .B df
.\"O reports the space used and available on all
.\"O currently mounted filesystems (of all types).
.\"O Otherwise,
.\"O .B df
.\"O reports on the filesystem containing each argument
.\"O .IR file .
°ú¤­¿ô¤¬¤Ê¤¤¾ì¹ç¡¢
.B df
¤Ï¸½ºß¥Þ¥¦¥ó¥È¤µ¤ì¤Æ¤¤¤ë (Á´¤Æ¤Î¥¿¥¤¥×¤Î) 
Á´¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ë¤Ä¤¤¤Æ
»ÈÍÑÎ̤ȻÈÍѲÄǽÎ̤òɽ¼¨¤¹¤ë¡£
°ú¤­¿ô¤¬»ØÄꤵ¤ì¤Æ¤¤¤ë¾ì¹ç¡¢
.B df
¤Ï°ú¤­¿ô
.I file
¤¬´Þ¤Þ¤ì¤ë¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ë¤Ä¤¤¤Æɽ¼¨¤¹¤ë¡£
.\"O .SH "POSIX DETAILS"
.SH "POSIX ¾ÜºÙ"
.\"O The output is in 512-byte units by default, but in
.\"O 1024-byte units when the \-k option is given.
.\"O The output format is undefined, unless the \-P option is given.
.\"O If
.\"O .I file
.\"O is not a regular file, a directory or a FIFO, the result
.\"O is unspecified.
½ÐÎϤϥǥե©¥ë¥È¤Ç¤Ï 512 ¥Ð¥¤¥Èñ°Ì¤Ç¤¢¤ë¤¬¡¢
\-k ¥ª¥×¥·¥ç¥ó¤¬»ØÄꤵ¤ì¤¿¾ì¹ç¤Ï 1024 ¥Ð¥¤¥Èñ°Ì¤Ë¤Ê¤ë¡£
\-P ¥ª¥×¥·¥ç¥ó¤¬»ØÄꤵ¤ì¤Ê¤¤¾ì¹ç¡¢½ÐÎÏ¥Õ¥©¡¼¥Þ¥Ã¥È¤Ï̤ÄêµÁ¤Ç¤¢¤ë¡£
.I file
¤¬Ä̾ï¤Î¥Õ¥¡¥¤¥ë¡¢¥Ç¥£¥ì¥¯¥È¥ê¡¢FIFO ¤Î¤¤¤º¤ì¤Ç¤â¤Ê¤¤¾ì¹ç¤Î
·ë²Ì¤Ïµ¬Äꤵ¤ì¤Æ¤¤¤Ê¤¤¡£
.\"O .SH "GNU DETAILS"
.SH "GNU ¾ÜºÙ"
.\"O If an argument
.\"O .I file
.\"O is a disk device file containing a mounted filesystem,
.\"O .B df
.\"O shows the space available on that filesystem rather
.\"O than on the filesystem containing the device node.
°ú¤­¿ô
.I file
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.B df
¤Ï¤½¤Î¥Ç¥Ð¥¤¥¹¥Î¡¼¥É¤Î°¤·¤Æ¤¤¤ë¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ç¤Ï¤Ê¤¯¡¢
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.\"O .SH "POSIX OPTIONS"
.SH "POSIX ¥ª¥×¥·¥ç¥ó"
.TP
.B "\-k"
.\"O Use 1024-byte units instead of the default 512-byte units.
¥Ç¥Õ¥©¥ë¥È¤Î 512 ¥Ð¥¤¥Èñ°Ì¤ÎÂå¤ï¤ê¤Ë 1024 ¥Ð¥¤¥Èñ°Ì¤òÍѤ¤¤ë¡£
.TP
.B "\-P"
.\"O Output in six columns, with heading `Filesystem N-blocks
.\"O Used Available Capacity Mounted on' (with N=512, but N=1024
.\"O when the \-k option is given).
`Filesystem N-blocks Used Available Capacity Mounted on'
¤È¤¤¤¦¥Ø¥Ã¥À¤ò¤Ä¤±¤Æ 6 Îó¤Ç½ÐÎϤ¹¤ë
(Ä̾ï¤Ï N=512¡¢\-k ¥ª¥×¥·¥ç¥ó¤¬»ØÄꤵ¤ì¤¿¤È¤­¤Ï N=1024)¡£
.\"O .SH "GNU OPTIONS"
.SH "GNU ¥ª¥×¥·¥ç¥ó"
.TP
.B "\-a, \-\-all"
.\"O Include in the listing filesystems that have a size of 0 blocks, or of type
.\"O `ignore' or `auto' which are omitted by default.
¥µ¥¤¥º¤¬ 0 ¥Ö¥í¥Ã¥¯¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤ä
¥¿¥¤¥×¤¬ `ignore' ¤Þ¤¿¤Ï `auto' ¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤â
¥ê¥¹¥Èɽ¼¨¤Ë´Þ¤á¤ë (¥Ç¥Õ¥©¥ë¥È¤Ç¤Ï¾Ê¤«¤ì¤ë)¡£
.TP
.B "\-h, \-\-human-readable"
.\"O Append a size letter such as \fBM\fR for megabytes to each size.
.\"O Powers of 2 are used, not 10; \fBM\fR stands for 1,048,576 bytes.
¤½¤ì¤¾¤ì¤Î¥µ¥¤¥º¤Ë¡¢
Î㤨¤Ð¥á¥¬¥Ð¥¤¥È¤Ê¤é \fBM\fR ¤Î¤è¤¦¤Ê¥µ¥¤¥ºÊ¸»ú¤òÉղ乤롣
10 ¤ÎÎß¾è¤Ç¤Ï¤Ê¤¯ 2 ¤ÎÎß¾è¤òÍѤ¤¤ë¤Î¤Ç¡¢
\fBM\fR ¤Ï 1,048,576 ¥Ð¥¤¥È¤òɽ¤¹¡£
.TP
.B "\-i, \-\-inodes"
.\"O List inode usage information instead of block usage.
¥Ö¥í¥Ã¥¯Ã±°Ì¤Ç¤Î»ÈÍÑÍÆÎ̤Τ«¤ï¤ê¤Ë inode ¤Î»ÈÍѾõ¶·¤ò¥ê¥¹¥Èɽ¼¨¤¹¤ë¡£
.TP
.B "\-k, \-\-kilobytes"
.\"O Print sizes in 1024-byte blocks, overriding the default block size.
¥Ç¥Õ¥©¥ë¥È¤Î¥Ö¥í¥Ã¥¯¥µ¥¤¥º¤ò̵»ë¤·¡¢
1024 ¥Ð¥¤¥È¤ò 1 ¥Ö¥í¥Ã¥¯¤È¤·¤Æ¥µ¥¤¥º¤òɽ¼¨¤¹¤ë¡£
.TP
.B \-l, \-\-local
.\"O List only local filesystems.         
¥í¡¼¥«¥ë¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¤ß¤ò¥ê¥¹¥Èɽ¼¨¤¹¤ë¡£
.TP
.B "\-m, \-\-megabytes"
.\"O Print sizes in megabyte (1,048,576 bytes) blocks.
¥á¥¬¥Ð¥¤¥È (1,048,576 ¥Ð¥¤¥È) ¥Ö¥í¥Ã¥¯Ã±°Ì¤Ç¥µ¥¤¥º¤òɽ¼¨¤¹¤ë¡£
.TP
.BI "\-t " "fstype, " "\-\-type=" "fstype"
.\"O List only filesystems of type
.\"O .I fstype.
.\"O Multiple types can be specified by giving multiple
.\"O .B \-t
.\"O options.  See \fB\-\-all\fR for ommited defaults.
¥¿¥¤¥×¤¬
.I fstype
¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¤ß¤ò¥ê¥¹¥Èɽ¼¨¤¹¤ë¡£
.B \-t
¥ª¥×¥·¥ç¥ó¤òÊ£¿ô»ØÄꤹ¤ì¤Ð¡¢Ê£¿ô¤Î¥¿¥¤¥×¤òɽ¼¨¤¹¤ë¤è¤¦¤Ë¤Ç¤­¤ë¡£
¥Ç¥Õ¥©¥ë¥È¤Ç¾Êά¤µ¤ì¤ë¤â¤Î¤Ë¤Ä¤¤¤Æ¤Ï \fB\-\-all\fR ¤ò»²¾È¤¹¤ë¤³¤È¡£
.TP
.B "\-v"
.\"O Ignored; for compatibility with System V versions of
.\"O .B df.
¤³¤Î¥ª¥×¥·¥ç¥ó¤Ï̵»ë¤µ¤ì¤ë (System V ÈǤÎ
.B df
¤È¤Î¸ß´¹À­¤Î¤¿¤á¤Ë¤¢¤ë)¡£
.TP
.BI "\-x " "fstype, " "\-\-exclude\-type=" "fstype"
.\"O Exclude filesystems of type
.\"O .I fstype.
.\"O Multiple filesystem types can be eliminated by giving multiple
.\"O .B "\-x"
.\"O options.  By default, no filesystem types are excluded.  See \fB\-\-all\fR
.\"O for ommited defaults.
¥¿¥¤¥×¤¬
.I fstype
¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤ò½ü³°¤¹¤ë¡£
.B \-x
¥ª¥×¥·¥ç¥ó¤òÊ£¿ô»ØÄꤹ¤ì¤Ð¡¢Ê£¿ô¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¥¿¥¤¥×¤òɽ¼¨¤«¤éºï½ü¤Ç¤­¤ë¡£
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¥Ç¥Õ¥©¥ë¥È¤Ç¾Êά¤µ¤ì¤ë¤â¤Î¤Ë¤Ä¤¤¤Æ¤Ï \fB\-\-all\fR ¤ò»²¾È¤¹¤ë¤³¤È¡£
.TP
.B \-H, \-\-si
.\"O Append a size letter such as \fBM\fR for megabytes to each size.  (SI
.\"O is the International System of Units, which defines these letters)  Powers
.\"O of 10 are used, not 2; \fBM\fR stands for 1,000,000 bytes.
¤½¤ì¤¾¤ì¤Î¥µ¥¤¥º¤Ë¤Ä¤¤¤Æ¡¢Î㤨¤Ð¥á¥¬¥Ð¥¤¥È¤Ê¤é \fBM\fR ¤È¤¤¤Ã¤¿
¥µ¥¤¥ºÊ¸»ú¤òÉղ乤롣
(SI¤È¤Ï¹ñºÝñ°Ì·Ï¤Î¤³¤È¤Ç¡¢¤³¤ì¤é¤Î¥µ¥¤¥ºÊ¸»ú¤òÄêµÁ¤·¤Æ¤¤¤ë)
2 ¤ÎÎß¾è¤Ç¤Ï¤Ê¤¯ 10 ¤ÎÎß¾è¤òÍѤ¤¤ë¤Î¤Ç¡¢
\fBM\fR ¤Ï 1,000,000 ¥Ð¥¤¥È¤òɽ¤¹¡£
.TP
.B "\-P, \-\-portability"
.\"O Use the
.\"O .SM POSIX
.\"O output format.  This is like the default format
.\"O except that a) the information about each filesystem is always
.\"O printed on exactly one line; a mount device is never put on a line
.\"O by itself.  This means that if the mount device name is more than
.\"O 20 characters long (e.g., for some network mounts), the columns
.\"O are misaligned. b) Rounding is upwards. c) Column headers match POSIX.  
.SM POSIX
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°Ê²¼¤Î a), b), c) ¤ÎÅÀ¤¬°Û¤Ê¤ë¡£
a) ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ë¤Ä¤¤¤Æ¤Î¾ðÊ󤬾ï¤Ë 1 ¹Ô¤Çɽ¼¨¤µ¤ì¤ë¡£
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b) ´Ý¤á¤¬·«¾å¤²¤Ë¤Ê¤ë¡£
c) ¥³¥é¥à¤Î¥Ø¥Ã¥À¤¬ POSIX ¤Ë½àµò¤·¤Æ¤¤¤ë¡£
.TP
.B "\-T, \-\-print\-type"
.\"O Print each filesystem's type.  See
.\"O .BR mount (8).
³Æ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥¿¥¤¥×¤òɽ¼¨¤¹¤ë¡£
.BR mount (8)
¤ò»²¾È¡£
.TP
.B \-\-block\-size=\fISIZE
.\"O Set the block size to \fISIZE\fR, overriding the value of the environment
.\"O variables.
¥Ö¥í¥Ã¥¯¥µ¥¤¥º¤ò \fISIZE\fR ¤ËÀßÄꤷ¡¢´Ä¶­ÊÑ¿ô¤ÎÃͤò̵»ë¤¹¤ë¡£
.TP
.B "\-\-no\-sync"
.\"O Do not invoke
.\"O .B sync(2)
.\"O before getting any usage data.
.\"O This may make
.\"O .B df
.\"O run significantly faster, but on some systems (notably SunOS)
.\"O the results may be slightly out of date.  This is the default.
»ÈÍÑÎ̥ǡ¼¥¿¤òÆÀ¤ëÁ°¤Ë
.B sync(2)
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¤³¤Î¥ª¥×¥·¥ç¥ó¤Ï
.B df
¤ÎÆ°ºî¤¬¤«¤Ê¤ê®¤¯¤Ê¤ë¤«¤â¤·¤ì¤Ê¤¤¤¬¡¢
¥·¥¹¥Æ¥à¤Ë¤è¤Ã¤Æ¤Ï (ÆÃ¤Ë SunOS ¤Ç¤Ï)
·ë²Ì¤¬¾¯¤·¸Å¤¯¤Ê¤ë¤«¤â¤·¤ì¤Ê¤¤¡£¤³¤Î¥ª¥×¥·¥ç¥ó¤Ï¥Ç¥Õ¥©¥ë¥È¤Ç¤¢¤ë¡£
.TP
.B "\-\-sync"
.\"O Invoke
.\"O .B sync(2)
.\"O before getting any usage data.  On some systems 
.\"O (notably SunOS), doing this yields more up to date results,
.\"O but in general this option makes
.\"O .B df
.\"O much slower, especially when there are many or very busy filesystems.
»ÈÍÑÎ̥ǡ¼¥¿¤òÆÀ¤ëÁ°¤Ë
.B sync(2)
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¥·¥¹¥Æ¥à¤Ë¤è¤Ã¤Æ¤Ï (ÆÃ¤Ë SunOS ¤Ç¤Ï)
¤è¤ê¿·¤·¤¤·ë²Ì¤òÆÀ¤ë¤³¤È¤¬¤Ç¤­¤ë¡£
¤·¤«¤·°ìÈÌŪ¤Ë¡¢¤³¤Î¥ª¥×¥·¥ç¥ó¤Ï
.B df
¤ÎÆ°ºî¤ò¤º¤Ã¤ÈÃÙ¤¯¤¹¤ë
(Æä˥ե¡¥¤¥ë¥·¥¹¥Æ¥à¤¬Â¿¤¤¾ì¹ç¤ä¡¢
¹¹¿·¤¬Èó¾ï¤ËÉÑÈˤʥե¡¥¤¥ë¥·¥¹¥Æ¥à¤¬¤¢¤ë¾ì¹ç)¡£
.\"O .SH "GNU STANDARD OPTIONS"
.SH "GNU ɸ½à¥ª¥×¥·¥ç¥ó"
.TP
.B "\-\-help"
.\"O Print a usage message on standard output and exit successfully.
ɸ½à½ÐÎϤ˻ÈÍÑÊýË¡¤Î¥á¥Ã¥»¡¼¥¸¤ò½ÐÎϤ·¤ÆÀµ¾ï½ªÎ»¤¹¤ë¡£
.TP
.B "\-\-version"
.\"O Print version information on standard output, then exit successfully.
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.TP
.B "\-\-"
.\"O Terminate option list.
¥ª¥×¥·¥ç¥ó¥ê¥¹¥È¤Î½ª¤ê¤ò¼¨¤¹¡£
.\"O .SH BLOCK SIZE
.SH ¥Ö¥í¥Ã¥¯¥µ¥¤¥º
.\"O The default output file block size is 1024 bytes 
.\"O (or 512 if \fBPOSIXLY_CORRECT\fR).
.\"O You may change this value by setting any of the following environment
.\"O variables, which are overriden 
.\"O if a \fB\-\-block\-size=\fISIZE\fR is given.
¥Ç¥Õ¥©¥ë¥È¤Î½ÐÎÏ¥Õ¥¡¥¤¥ë¥Ö¥í¥Ã¥¯¥µ¥¤¥º¤Ï
1024 ¥Ð¥¤¥È (\fBPOSIXLY_CORRECT\fR¤¬ÀßÄꤵ¤ì¤Æ¤¤¤ë¤È¤­¤Ï 512 ¥Ð¥¤¥È) ¤Ç¤¢¤ë¡£
¤³¤ÎÃͤϰʲ¼¤Î´Ä¶­ÊÑ¿ô¤Î¤É¤ì¤«¤òÀßÄꤹ¤ë¤³¤È¤ÇÊѹ¹¤Ç¤­¤ë¡£
¤Þ¤¿¡¢¤³¤ì¤é¤Î´Ä¶­ÊÑ¿ô¤ÎÃÍ¤Ï \fB\-\-block\-size=\fISIZE\fR ¤¬
¥ª¥×¥·¥ç¥ó¤ËÍ¿¤¨¤é¤ì¤ë¤È̵»ë¤µ¤ì¤ë¡£
.TP
.\"O In order of precedence:
Í¥Àè½ç°Ì¡§
.BR DF_BLOCK_SIZE ", " BLOCK_SIZE ", " POSIXLY_CORRECT .
.PP
.\"O The values for these variables can be either a number, 
.\"O \fBhuman\-readable\fR, or
.\"O \fBsi\fR.  Numbers may be followed by a size letter 
.\"O to specify a multiple of that
.\"O size, and a \fBB\fR to select normal bytes or a \fBD\fR to select
.\"O decimal "commercial" bytes.  For example `BLOCK_SIZE=1KB' is equal to
.\"O `BLOCK_SIZE=1024' and `BLOCK_SIZE=1KD' is equal to `BLOCK_SIZE=1000'
¤³¤ì¤é¤ÎÊÑ¿ô¤ÎÃͤϡ¢¿ô»ú¤Ç¤â \fBhuman\-readable\fR ¤Ç¤â \fBsi\fR ¤Ç¤â¤è¤¤¡£
¿ô»ú¤Î¸å¤Ë¤Ï¡¢²¿ÇܤǤ¢¤ë¤«¤ò»ØÄꤹ¤ë¥µ¥¤¥ºÊ¸»ú¤È¡¢
Ä̾ï¤Î¥Ð¥¤¥È¤òÁªÂò¤¹¤ë \fBB\fR ¤Þ¤¿¤Ï
½½¿Ê¤Î¡Ö¾¦¶ÈÍѡץХ¤¥È¤òÁªÂò¤¹¤ë \fBD\fR ¤ò³¤±¤Æ¤â¤è¤¤¡£
¤¿¤È¤¨¤Ð `BLOCK_SIZE=1KB' ¤Ï `BLOCK_SIZE=1024' ¤ËÅù¤·¤¯¡¢
`BLOCK_SIZE=1KD' ¤Ï `BLOCK_SIZE=1000' ¤ËÅù¤·¤¤¡£

.\"O The following letters are recognized (and used when printing with
.\"O \fB\-\-human\-readable\fR or \fB\-\-si\fR)
°Ê²¼¤Îʸ»ú¤¬Ç§¼±¤µ¤ì¤ë 
(¤Þ¤¿ \fB\-\-human\-readable\fR ¤È 
\fB\-\-si\fR ¥ª¥×¥·¥ç¥ó¤Çɽ¼¨¤µ¤ì¤ë¤È¤­¤ËÍѤ¤¤é¤ì¤ë)¡£
.TP
.B k
.\"O kilo: 2^10 = 1024 for \fB\-\-human-readable\fR, or 
.\"O 10^3 = 1000 for \fB\-\-si\fR
¥­¥í: \fB\-\-human-readable\fR ¤Ê¤é 2^10 = 1024¡¢
\fB\-\-si\fR ¤Ê¤é 10^3 = 1000
.TP
.B M
.\"O Mega: 2^20 = 1,048,576 or 10^6 = 1,000,000
¥á¥¬: 2^20 = 1,048,576 ¤Þ¤¿¤Ï 10^6 = 1,000,000
.TP
.B G
.\"O Giga: 2^30 = 1,073,741,824 or 10^9 = 1,000,000,000
¥®¥¬: 2^30 = 1,073,741,824 ¤Þ¤¿¤Ï 10^9 = 1,000,000,000
.TP
.B T
.\"O Tera: 2^40 = 1,099,511,627,776 or 10^12 = 1,000,000,000,000
¥Æ¥é: 2^40 = 1,099,511,627,776 ¤Þ¤¿¤Ï 10^12 = 1,000,000,000,000
.TP
.B P
.\"O Peta: 2^50 = 1,125,899,906,842,624 or 10^15 = 1,000,000,000,000,000
¥Ú¥¿: 2^50 = 1,125,899,906,842,624 ¤Þ¤¿¤Ï 10^15 = 1,000,000,000,000,000
.TP
.B E
.\"O Exa: 2^60 = 1,152,921,504,606,846,976 or 10^18 = 1,000,000,000,000,000,000
¥¨¥¯¥µ: 2^60 = 1,152,921,504,606,846,976 ¤Þ¤¿¤Ï 
10^18 = 1,000,000,000,000,000,000
.TP
.B Z
.\"O Zetta: 2^70 = 1,180,591,620,717,411,303,424 or 10^21 =
.\"O 1,000,000,000,000,000,000,000
¥¼¥¿: 2^70 = 1,180,591,620,717,411,303,424 ¤Þ¤¿¤Ï 10^21 =
1,000,000,000,000,000,000,000
.TP
.B Y
.\"O Yotta: 2^80 = 1,208,925,819,614,629,174,706,176 or 10^24 =
.\"O 1,000,000,000,000,000,000,000,000
¥è¥¿: 2^80 = 1,208,925,819,614,629,174,706,176 ¤Þ¤¿¤Ï 10^24 =
1,000,000,000,000,000,000,000,000
.\"O .SH ENVIRONMENT
.SH ´Ä¶­ÊÑ¿ô
.\"O The variables DF_BLOCK_SIZE, BLOCK_SIZE and POSIXLY_CORRECT determine the
.\"O choice of the output file block size.
.\"O The variables LANG, LC_ALL, LC_CTYPE and LC_MESSAGES have the
.\"O usual meaning.
ÊÑ¿ô DF_BLOCK_SIZE, BLOCK_SIZE, POSIXLY_CORRECT ¤Ï
½ÐÎÏ¥Õ¥¡¥¤¥ë¥Ö¥í¥Ã¥¯¥µ¥¤¥º¤ÎÁªÂò¤ò·èÄꤹ¤ë¡£
ÊÑ¿ô LANG, LC_ALL, LC_CTYPE, LC_MESSAGES ¤¬Ä̾ï¤Î°ÕÌ£¤ò»ý¤Ä¡£
.\"O .SH "CONFORMING TO"
.SH ½àµò
POSIX 1003.2
.\"O .SH "SEE ALSO"
.SH ´ØÏ¢¹àÌÜ
.BR mount (8)
.\"O .SH NOTES
.SH Ãí°Õ
.\"O Disk usage is rounded upwards, free space downwards.
¥Ç¥£¥¹¥¯»ÈÍÑÎ̤ϴݤá¤ÎºÝ¤Ë·«¾å¤²¤é¤ì¡¢
¶õ¤­ÍÆÎ̤Ϸ«¤ê²¼¤²¤é¤ì¤ë¡£
.\"O 
.PP
.\"O This page describes
.\"O .B df
.\"O as found in the fileutils-4.1 package;
.\"O other versions may differ slightly. Mail corrections and additions to
.\"O aeb@cwi.nl and aw@mail1.bet1.puv.fi and ragnar@ragnar-hojland.com
.\"O Report bugs in the program to bug-fileutils@gnu.org.
¤³¤Î¥Ú¡¼¥¸¤Ï fileutils-4.1 ¥Ñ¥Ã¥±¡¼¥¸¤Î
.B df
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