.\" -*- nroff -*-
.\" 
.\" This page is a part of e2fsprogs.
.\" 
.\" Japanese Version Copyright 1998 by MATSUMOTO Shoji. All Rights Reserved.
.\" Translated Wed Mar 13 1998 by MATSUMOTO Shoji.
.\" Updated Sat 23 Oct 1999 by NAKANO Takeo <nakano@apm.seikei.ac.jp>
.\" Updated Tue 16 Nov 1999 by NAKANO Takeo
.\" Updated & Modified Tue Jul 31 06:01:10 JST 2001
.\"         by Yuichi SATO <ysato@h4.dion.ne.jp>
.\" Updated Thu 3 Oct 2002 by NAKANO Takeo
.\" Updated & Modified Sat Apr 17 10:22:11 JST 2004
.\"         by Yuichi SATO <ysato4444@yahoo.co.jp>
.\"
.\"WORD:	attribute	°
.\"WORD:	symbolic mode	⡼ɤεˡ
.\"WORD:	format		եޥå
.\"
.TH CHATTR 1 "June 2005" "E2fsprogs version 1.38"
.SH ̾
chattr \- Linux   2 ĥե륷ƥ (ext2fs) ˤ
ե° (attribute) ѹ
.SH 
.B chattr
[
.B \-RV
]
[
.B \-v
.I version
]
[
.I mode
]
.I files...
.SH 
.B chattr
 Linux  2 ĥե륷ƥ (ext2fs) ˤ
ե° (attribute) ѹ롣
.PP
mode εˡեޥåȤ +-=[ASacDdIijsTtu] Ǥ롣
.PP
+ ڥ졼Ѥȡ򤷤°եղä롣
- ڥ졼ѤȲ롣
= ڥ졼Ѥȡեϻꤷ°ĤȤˤʤ롣
.PP
acdijsuADSTפϻǤ°Ǥ롣
(a) ɲäΤߵ (append only)(c)  (compressed)
(d) פʤ (no dump)(i) ѹԲ (immutable)
(j) ǡΥ㡼ʥ (data journalling)
(s) ʺ (secure deletion)(t) ޡ򤷤ʤ (no tail-merging)
(u) ǽ (undeletable)
(A) atime 򹹿ʤ
(D) ǥ쥯ȥƱ (synchronous directory updates)
(S) Ʊ (synchronous updates)
(T) ǥ쥯ȥ곬ؤΥȥåס
.SH ץ
.TP
.B \-R
ƵŪ˥ǥ쥯ȥ䤽Ȥ°ѹ롣
ǥ쥯ȥ֤ˬƤǥܥå󥯤˽вäϡ
̵뤹롣
.TP
.B \-V
°ѹܺ٤ɽ롣
.TP
.BI -v " version"
ե륷ƥΥС/ꤹ롣
.SH °
`A' °ꤵƤեϡ
Ƥ atime 쥳ɤѹʤ
ϥåץȥåץƥΥǥ I/O 򤢤ٷڸ롣
.PP
`a' °ꤵƤեϡ
񤭹ߤκݤɲå⡼ɤǤץǤʤ
ѡ桼ޤ
CAP_LINUX_IMMUTABLE ѥӥƥ (capability) ĥץ
°ꡦǤ롣
.PP
`c' °ꤵƤեϡ
ǥ֤ȤͥˤäƼưŪ˰̤롣
Υեɤ߽ФȡĹ줿ǡ֤äƤ롣
Υե˽񤭹ȡǥ¸˥ǡ̤롣
.PP
`D' °ꤵƤǥ쥯ȥϡ
ѹƱ˥ǥˤ⤽Ƥ񤭹ޤ롣
 `dirsync' ޥȥץ
ΥեŬѤΤƱȤǤ롣
.PP
`d'  °ꤵƤեϡ
.BR dump (8)
ץưݤ˥Хååפʤ
.PP
`E' °ϼ¸Ūʰ̥ѥåѤΤǡ
̥ե˰̥顼뤳Ȥ򼨤
°
.BR chattr (1)
ˤäꤷꤹ뤳ȤϤǤʤ
.BR lsattr (1)
Ѥɽ뤳ȤϤǤ롣
.PP
`I' ° htree ɤˤäѤ졢
ǥ쥯ȥ꤬ϥåĥ꡼Ȥäƺդ뤳Ȥ򼨤
°
.BR chattr (1)
ˤäꤷꤹ뤳ȤϤǤʤ
.BR lsattr (1)
Ѥɽ뤳ȤϤǤ롣
.PP
`i' °ꤵƤեϡѹ뤳ȤǤʤ
ʤ̾ѹΥեؤ󥯤κ
ΥեФǡν񤭹ߤػߤ롣
ѡ桼ޤ
CAP_LINUX_IMMUTABLE ѥӥƥĥץ
°ꡦǤ롣
.PP
`j' °ꤵƤեϡ
ե륷ƥब "data=ordered"  ޤ "data=writeback" ץ
ޥȤƤ硢
ե뤽ΤΤ˽񤭽Фˡ
ext3 Υ㡼ʥ˥ǡ񤭽Ф롣
ե륷ƥब "data=journal" ץǥޥȤƤ硢
ƤΥեǡϴ˥㡼ʥ˵ϿƤΤǡ
°ϲƶʤ
ѡ桼ޤ
CAP_SYS_RESOURCE ѥӥƥĥץ
°ꡦǤ롣
.PP
`s' °ꤵƤե뤬ȡ
ƤƤ֥åȤ 0 ˤ졢ǥ˽ᤵ롣
.PP
`S' °ꤵƤե뤬ѹȡ
ѹƱŪ˥ǥ˽񤭹ޤ
(ʤѹľ˥ǥȿǤ)
 mount ץ `sync' 
ΥեŬѤΤƱȤǤ롣
.PP
`T' °ꤵƤǥ쥯ȥϡ
(Linux 2.5.46 ʹߤΥƥǻȤ)
Orlov ֥åΤ
ǥ쥯ȥ곬ؤΥȥåפȤư롣
.PP
`t' °ꤵƤեϡ
Υե뤬¾Υեȥޡ줿Ȥ
ʬŪ֥åΥե饰Ȥ˺ʤ
(ޡ (tail-merging) 򥵥ݡȤƤե륷ƥξ)
 LILO Τ褦ʡե륷ƥľɤߤˤ
ޡ줿եΤȤ򤷤ʤ褦
ץꥱФɬפȤʤ롣
:  man ڡ񤤤Ƥǡext2  ext3 ե륷ƥ
(ޤ˼¸ŪʥѥåʳǤ)
ޡ򥵥ݡȤƤʤ
.PP
`u' °ꤵƤեȡ
Ƥݸ롣
ˤꡢ桼ե褵뤳Ȥǽˤʤ롣
.PP
`X' °ϼ¸Ūʰ̥ѥåˤäѤ졢
̥եƤ֤̾ΤޤľܥǽǤ뤳Ȥ򼨤
°ϸߤΤȤ
.BR chattr (1)
ˤäꤷꤹ뤳ȤϤǤʤ
.BR lsattr (1)
Ѥɽ뤳ȤϤǤ롣
.PP
`Z' °ϼ¸Ūʰ̥ѥåˤäѤ졢
̥ե뤬Ƥ (dirty) Ȥ򼨤
°
.BR chattr (1)
ˤäꤷꤹ뤳ȤϤǤʤ
.BR lsattr (1)
Ѥɽ뤳ȤϤǤ롣
.PP
.SH 
.B chattr 
ϡRemy Card <Remy.Card@linux.org> ˤäƺ줿
ߤ Theodore Ts'o <tytso@alum.mit.edu> ˤäƥƥʥ󥹤Ƥ롣
.SH Х
`c', 's', `u' °ؤбϡ߼ήˤʤäƤ Linux ͥ
Ƥ ext2  ext3 ե륷ƥ˴ޤޤƤʤ
°Ͼ ext2  ext3 ˼뤫⤷ʤ
.PP
`j' ץϡext3 ǥޥȤ줿
ե륷ƥˤĤƤΤͭǤ롣
.PP
`D' ץ Linux ͥ 2.5.19 ʹߤǤΤѤǤ롣
.SH ˡ
.B chattr
 e2fsprogs ѥåΰǤꡢ
http://e2fsprogs.sourceforge.net Ǥ롣
.SH Ϣ
.BR lsattr (1)