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>Linux Ext2fs Undeletion mini-HOWTO</TH
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>2. $B%U%!%$%k$r8m$C$F:o=|$7$J$$$?$a$K$O(B</A
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><P
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$B$^$:4N$KLC$8$F$/$@$5$$!#(BMS-DOS ($B$*$h$S$=$N0-Kb$N;R$G$"$k(B Windows 95)
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><DIV
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><BLOCKQUOTE
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<A
HREF="sec-credits.html"
>Section 15</A
> $B;2>H(B)$B!#(B</P
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CLASS="COMMAND"
>rm</B
> $B%3%^%s%I$G:o=|$9$kA0$K!":o=|$r$9$k$+H]$+$N3NG'%a%C%;!<%8$,(B
$BI=<($5$l$k$h$&$K$J$j$^$9!#(B($B$?$@!"Cx<T$N>l9g!"$=$l$G$b(B <B
CLASS="COMMAND"
>rm -r</B
> $B%3%^%s%I$G%G%#%l%/%H%jFb$r:F5"E*$K:o=|$9$k:]$K$O!"(B
$B:G=i$N3NG'I=<($NCJ3,$G%W%m%0%i%`$rDd;_$5$;$F!"(B<B
CLASS="COMMAND"
>rm -rf</B
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$B$h$$J}K!$G$9!#$3$l$O!"$"$k%7%9%F%`4IM}<T$+$iJ9$$$?OC$G$9$,!"H`$O(B
<TT
CLASS="FILENAME"
>/etc/passwd</TT
> $B%U%!%$%k$r2?EY$+8m$C$F:o=|$7$?$3$H$,(B
$B$"$C$?$=$&$G$9(B ($B$3$l$O%7%9%F%`$K$[$\GK2uE*$J%@%a!<%8$rM?$($^$9(B)$B!#(B
$B$=$l$KBP$9$kBP=hJ}K!$N$R$H$D$O!"0J2<$N$h$&$J$b$N$@$C$?$=$&$G$9(B
($B$3$l$O(B root $B$G<B9T$7$^$9(B)$B!#(B</P
><P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
> # mkdir /.backup
# ln /etc/passwd /.backup</PRE
></FONT
></TD
></TR
></TABLE
></P
><P
>$B$3$&$7$F$*$/$H!"%U%!%$%k$NFbMF$r40A4$K>C5n$9$k$N$,$+$J$jLLE]$K$J$j$^$9!#(B
$B$b$7<!$N$h$&$J%3%^%s%I$r<B9T$7$?$H$7$F$b!"(B</P
><P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
> # rm /etc/passwd</PRE
></FONT
></TD
></TR
></TABLE
></P
><P
>$B$=$N:]$K$O!"(B</P
><P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
> # ln /.backup/passwd /etc</PRE
></FONT
></TD
></TR
></TABLE
></P
><P
>$B$H$9$l$P!"%U%!%$%k$rI|5l$G$-$^$9!#$b$A$m$s!"%U%!%$%k$r>e=q$-$7$F$7$^$&$H(B
$B$3$NJ}K!$OLr$KN)$?$J$$$N$G!"$$$:$l$K$7$F$b%P%C%/%"%C%W$OI,MW$G$9!#(B</P
><P
>ext2 $B%U%!%$%k%7%9%F%`>e$G$O!"(Bext2 $B$NB0@-$rMxMQ$7$F%U%!%$%k$d%G%#%l%/%H%j$r(B
$BJ]8n$9$k$3$H$,$G$-$^$9!#$3$NB0@-$NA`:n$K$O(B <B
CLASS="COMMAND"
>chattr</B
>
$B%3%^%s%I$r;H$$$^$9!#B0@-$K$O$^$:!"!VDI2C$N$_2DG=(B(append-only)$B!WB0@-$H$$$&(B
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$B$O!"DL>oDL$jJQ99$O2DG=$G$9$,!"%U%!%$%k$N:o=|$,=PMh$J$/$J$j$^$9!#(B
$B!VDI2C$N$_2DG=!WB0@-$O!"<!$N$h$&$K@_Dj$7$^$9!#(B</P
><P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
> $ chattr +a $B%U%!%$%kL>(B</PRE
></FONT
></TD
></TR
></TABLE
></P
><P
>$B$^$?!"!VJQ99IT2D(B(immutable)$B!WB0@-$H$$$&$N$b$"$j!"$3$l$O(B root $B8"8B$G$N$_(B
$B@_Dj$d2r=|$,$G$-$k$h$&$K$J$C$F$$$^$9!#$3$NB0@-$,IU$$$?%U%!%$%k$d(B
$B%G%#%l%/%H%j$O!"JQ99!":o=|!"L>A0$NJQ99!"(B($B%O!<%I(B)$B%j%s%/$N:n@.$,IT2DG=$K(B
$B$J$j$^$9!#@_Dj$O!"<!$N$h$&$K$7$^$9!#(B</P
><P
><TABLE
BORDER="1"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="SCREEN"
> # chattr +i $B%U%!%$%kL>(B</PRE
></FONT
></TD
></TR
></TABLE
></P
><P
>ext2fs $B$K$O!"$5$i$K!V:o=|IT2D(B(undeletable)$B!W$H$$$&B0@-$b$"$j$^$9(B (<B
CLASS="COMMAND"
>chattr</B
> $B$K(B <TT
CLASS="OPTION"
>+u</TT
> $B$rIU$1$F@_Dj$7$^$9(B)$B!#0UL#$9$k$H$3$m(B
$B$O!"$3$NB0@-$rIU$1$?%U%!%$%k$,:o=|$5$l$?>l9g!"<B:]$K:FMxMQ$5$l$k$+$I$&$+$K(B
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$B$G$9!#$?$@;DG0$J$3$H$K!"$3$N5!G=$O%a%$%s%9%H%j!<%`$N%+!<%M%k$K$O$^$@(B
$B<BAu$5$l$F$$$^$;$s!#2a5n$K<BAu$5$l$+$1$?$3$H$O$"$C$?$N$G$9$,!"(B($BCx<T$NCN$k(B
$B8B$j(B) $B8=:_$N%+!<%M%k$G$O$^$@MxMQ2DG=$H$O$J$C$F$$$^$;$s!#(B</P
><P
><B
CLASS="COMMAND"
>rm</B
> $B$O(B <B
CLASS="COMMAND"
>rm </B
>
<TT
CLASS="OPTION"
>-i</TT
> $B$X$N%(%$%j%"%9$H$9$k$+!"F15!G=$N4X?t$KCV$-49$($k$Y$-$@!"(B
$B$H<gD%$9$k?M$b$$$^$9(B (<B
CLASS="COMMAND"
>rm </B
><TT
CLASS="OPTION"
>-i</TT
> $B$O!"%U%!%$%k(B
$B:o=|$N:]$KI,$:3NG'$r5a$a$^$9(B)$B!#<B:]$K(B <A
HREF="http://www.redhat.com/"
TARGET="_top"
>Red Hat</A
> $B$O!"(Broot $B$r4^$`A4%f!<%6$K(B
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$B%f!<%6%b!<%I$G5/F0$7$?$j!"JL$N%7%'%k$r;H$C$?$j!"0[$J$k%^%7%s$rMxMQ$7$?$j(B
$B$9$k$O$:$G$9$,!"$=$&$7$?>l9g$K$O$3$N(B <B
CLASS="COMMAND"
>rm</B
> $B5!G=$O(B
$BL58z$K$J$j$^$9!#:o=|3NG'$NI=<($,=P$k$3$H$K47$l$-$C$F$$$k$H!"<+J,$,(B
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CLASS="COMMAND"
>rm</B
> $B%3%^%s%I$r3F<o(B
$B%9%/%j%W%H$d%W%m%0%i%`$GCV$-49$($k$N$b!"Cx<T$N9M$($G$O!"4m81$J$3$H(B
$B$@$H;W$$$^$9!#(B</P
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>$B$b$&>/$7$^$7$JJ}K!$H$7$F$O!"(B<B
CLASS="COMMAND"
>rm</B
> $B$H$OJL$N%3%^%s%IL>$G!"(B
$B!V%4%_H"!W7A<0$N:o=|$,$G$-$k$h$&$J%Q%C%1!<%8$r;H$C$F$_$k$3$H$G$9!#(B
$B>\$7$/$O!"(BPeek, et al (1993) (<A
HREF="sec-credits.html"
>Section 15</A
> $B;2>H(B) $B$r(B
$B8+$F$/$@$5$$!#$?$@!"$3$l$K$bLdBj$O$"$j$^$9!#(B
$B$3$N%Q%C%1!<%8$N:n<T$O!":o=|$K$D$$$F%f!<%6$,L5F\Ce$K$J$k$h$&>)Ne$7$F$$$k(B
$B$h$&$K;W$o$l$k$+$i$G$9!#(BUnix $B%7%9%F%`>e$G$O!"$`$7$m!"<+8J@UG$$K4p$E$/(B
$B?5=E$J1?MQ$H$$$&%"%W%m!<%A$,4pK\$K$J$k$O$:$G$9!#(B</P
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