$Id: shell3.txt,v 1.3 2002-04-28 10:53:27+09 tomokuni Exp tomokuni $ $B%7%'%k$r;H$*$&(B - $B1~MQJT(B - lilo-bk $BM'T"E/CK(B ([email protected]) # $B$3$NJ8=q$K$D$$$F(B # $B$3$NJ8=q$NCx:n8"$OM'T"E/CK(B ([email protected]) $B$,M-$7$^$9!#(B # $B$3$NJ8=q$O(B GNU $B%U%j!r7o$N2<$GJ#@=!"G[I[!"JQ99$9$k$3$H$,$G$-$^$9!#(B # # Copyright (c) 2002 Tetsuo Tomokuni All rights reserved. # Permission is granted to copy, distribute and/or modify this document # under the terms of the GNU Free Documentation License, Version 1.1 # or any later version published by the Free Software Foundation; # with the Invariant Sections being LIST THEIR TITLES, with the # Front-Cover Texts being LIST, and with the Back-Cover Texts being LIST. # A copy of the license is included in the section entitled "GNU # Free Documentation License". # # GFDL $B$O(B LICENSE $B%U%!%$%k!"H$7$F$/$@$5$$!#(B $B=jMW;~4V(B: 60 $BJ,(B($B/$7$G$b(B UNIX $B$NLLGr$5$,EA$o$l$P9,$$$G$9!#(B Content 0 $B:#2s$NNcBj%9%/%j%W%H(B 1 $B%U%!%$%k%G%#%9%/%j%W%?$H%j%@%$%l%/%H(B/$B%Q%$%W(B 2 $B%k!<%WJ8$N%Q%$%W(B/$B%j%@%$%l%/%H=hM}(B 3 eval $B$rMQ$$$?O"A[G[Ns(B 4 trap $B$rMQ$$$?%7%0%J%k=hM}(B 5 $BNcBj%9%/%j%W%H$N2r@b(B Acknowledgement 0 $B:#2s$NNcBj%9%/%j%W%H(B (popcheck.sh) 1 $B%U%!%$%k%G%#%9%/%j%W%?$H%j%@%$%l%/%H(B/$B%Q%$%W(B 1.1 $B;EAH$_(B $B%j%@%$%l%/%H$H%Q%$%W$N86M}5Z$SCm0UE@$O<!$NDL$j$G$"$k!#(B - $B%j%@%$%l%/%H$h$j@h$K%Q%$%W$N%U%!%$%k%G%#%9%/%j%W%?=hM}$r9T$&!#(B - $B:8$+$i=g$KI>2A$5$l$k!#(B - dup2(2) $B$O%*%V%8%'%/%H$NJ#@=$r$9$k!#(B - $B%Q%$%W$O%5%V%7%'%k$Gl9g(B($BEvA3$@$,(B)$B:G8eCJ$G$NJQ?tA`:n$N7k2L$,$=$N8e$bM-8z$G$"$k!#(B) ($BNc(B) $ command >file $BI8=`=PNO$,(B file $B$K=PNO$5$l$k!#(B $ command 2>file $BI8=`%(%i!<=PNO$,(B file $B$K=PNO$5$l$k!#(B $ command >file 2>&1 $BI8=`=PNO$HI8=`%(%i!<=PNO$H$b$K(B file $B$K=PNO$5$l$k!#(B $ command 2>&1 >file $BI8=`=PNO$,(B file $B$K=PNO$5$l!"I8=`%(%i!<=PNO$OI8=`=PNO(B ($B$3$N>l9g$OC&1 | command2 $B$^$:(B command1 $B$NI8=`=PNO$,(B command2 $B$NI8=`=PNO$K%Q%$%W$G7k9g$5$l!"(B $B$=$N8e%Q%$%W$NA0CJ$NI8=`=PNO$K(B command1 $B$NI8=`%(%i!<=PNO$,7k9g$5$l!"(B $B7k2L$H$7$F(B command1 $B$NI8=`=PNO$HI8=`%(%i!<=PNO$,(B command2 $B$N(B $BI8=`=PNO$K7k9g$5$l$k!#(B 1.2 $BI8=`%(%i!<=PNO$N$_$r%Q%$%W(B $B%Q%$%W$N8eCJ$KI8=`%(%i!<=PNO$N$_$rEO$9$K$O$I$&$7$?$i$h$$$@$m$&$+!)(B ($BNc(B 1) $ command1 2>&1 >/dev/null | command2 (1) $BI8=`=PNO$,%Q%$%W$G(B command2 $B$K@\B3(B (2) $BI8=`%(%i!<=PNO$rI8=`=PNO$K%j%@%$%l%/%H(B (3) ($B$b$H$b$H$N(B)$BI8=`=PNO$r(B /dev/null $B$K%j%@%$%l%/%H(B $B7k2LE*$K(B $B$b$H$b$H$NI8=`=PNO(B ... /dev/null $B$X(B $B$b$H$b$H$NI8=`%(%i!<=PNO(B ... command2 $B$X%Q%$%W(B $B$H$J$k!#(B ($BNc(B 2) $ command1 3>&1 >/dev/null 2>&3 | command2 (1) $BI8=`=PNO$,%Q%$%W$G(B command2 $B$K@\B3(B (2) $B%@%_!<(B($B%U%!%$%k%G%#%9%/%j%W%?(B 3 $BHV(B)$B$rI8=`=PNO$K%j%@%$%l%/%H(B (3) ($B$b$H$b$H$N(B)$BI8=`=PNO$r(B /dev/null $B$K%j%@%$%l%/%H(B (4) $BI8=`%(%i!<=PNO$r%@%_!<$K"*$=$N7k2LI8=`=PNO$K%j%@%$%l%/%H(B $B7k2LE*$K(B $B$b$H$b$H$NI8=`=PNO(B ... /dev/null $B$X(B $B$b$H$b$H$NI8=`%(%i!<=PNO(B ... command2 $B$X%Q%$%W(B $B%@%_!<(B(fd 3) ... $B%*!<%W%s$7$?$^$^(B($B%3%^%s%I=*N;8e%/%m!<%:(B) $B$H$J$k!#(B ($BNc(B 3) $ command1 3>&1 1>&2 2>&3 3>&- | command2 (1) $BI8=`=PNO$,%Q%$%W$G(B command2 $B$K@\B3(B (2) $B%@%_!<(B($B%U%!%$%k%G%#%9%/%j%W%?(B 3 $BHV(B)$B$rI8=`=PNO$K%j%@%$%l%/%H(B (3) ($B$b$H$b$H$N(B)$BI8=`=PNO$rI8=`%(%i!<=PNO$K%j%@%$%l%/%H(B (4) ($B$b$H$b$H$N(B)$BI8=`%(%i!<=PNO$r%@%_!<$K"*$=$N7k2LI8=`=PNO$K%j%@%$%l%/%H(B (5) $B%@%_!<(B($B%U%!%$%k%G%#%9%/%j%W%?(B 3 $BHV(B)$B$r%/%m!<%:(B $B7k2LE*$K(B $B$b$H$b$H$NI8=`=PNO(B ... $BCl9g$O!"(B $B<!$N$h$&$K$9$k$H$h$$!#(B $ stat=`exec 4>&1; 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