[linux-users:106994] Re: $B%Q%$%W(B$B%i%$%s$NESCf$N%3%^%s%I$N(B$B=*N;%9%F!<%?%9(B

[SATO Hiroyuki <hiroyuki@xxxxxxxxxxxxxx>]

$B$3$s$K$A$O!#:4F#$G$9!#(B
(B
$B3'MM!"$42sEz$"$j$,$H$&$4$6$$$^$9!#BgJQJY6/$K$J$j$^$9!#(B
(B
(B
(B> bash$B8BDj$J$i(BPIPESTATUS$B$H$$$&G[NsJQ?t$G$o$+$k$h$&$G$9!#(B
(B
$B$3$l$,0lHVL\E*$KE,$$$=$&$G$9!#$?$@$7%j%9%HFb$G$J$1$l$P$J$i$J$$$h$&$G$9!#(B
(B
(B$ (exit 1)|(exit 0)|(exit 2)|(exit 0);echo ${PIPESTATUS[@]}
(B1 0 2 0
(B$ (exit 1)|(exit 0)|(exit 2)|(exit 0)
(B$ echo ${PIPESTATUS[@]}
(B0
(B
$B",$I$&$7$F!V(B0$B!W$J$N$G$7$g$&!#(B
(B
(B$ (exit 1)|(exit 0)|(exit 2)|(exit 0);HOGE=(${PIPESTATUS[@]})
(B$ echo ${HOGE[@]}
(B1 0 2 0
(B$ echo ${HOGE[0]}
(B1
(B
(B
(B> $BMW$9$k$K!"(B
(B>   set -o pipefail $B$H$7$F$*$1$P!"(B
(B>   $B$=$N%Q%$%W%i%$%sCf$G=*N;%9%F!<%?%9$,(B 0 $B$G$J$$%3%^%s%I$,$"$C$?>l9g!"(B
(B>   $B$=$NCf$G0lHV1&$K$"$k%3%^%s%I$N=*N;%9%F!<%?%9$,JV$k(B
(B> $B$H$$$&$3$H$G$9$M!#(B
(B
(Bversion 3.00.15 $B$G$O$G$-$^$7$?!#(B
(B
(B$ bash --version
(BGNU bash, version 3.00.15(1)-release (i686-redhat-linux-gnu)
(BCopyright (C) 2004 Free Software Foundation, Inc.
(B$ (exit 1)|(exit 0)|(exit 2)|(exit 0);echo $?
(B0
(B$ set -o pipefail
(B$ (exit 1)|(exit 0)|(exit 2)|(exit 0);echo $?
(B2
(B
(Bversion 2.05b.0 $B$G$OBLL\$G$7$?!#(B
(B
(B$ bash --version
(BGNU bash, version 2.05b.0(1)-release (i686-pc-linux-gnu)
(BCopyright (C) 2002 Free Software Foundation, Inc.
(B$ set -o pipefail
(B-bash: set: pipefail: invalid option name
(B
(B
(B>  # sort -T /opt/ access_log > tmpfile
(B>  # echo $?
(B>  # tail < tmpfile
(B>  # echo $?
(B> 
(B> $B$H$+$G$O%@%a$G$7$g$&$+(B?
(B
$BA0Ds>r7o$H$7$F!"!V$G$-$k8B$jM>7W$J%U%!%$%k$r:n$j$?$/$J$$!W$H$$$&$3$H$,(B
$B$"$j$^$9!#(B
(B
(B--------
(BSATO Hiroyuki <hiroyuki@xxxxxxxxxxxxxx>