$B0z?t$G;XDj$5$l$?%U%!%$%k$NFbMF$rCV$-49$($k(B(in-place edit)$B$3(B $B$H$r;XDj$7$^$9!%85$N%U%!%$%k$O3HD%;R$r$D$1$?7A$GJ]B8$5$l$^$9!%(B $B3HD%;R$,$J$1$l$P!$%P%C%/%"%C%W$O9T$o$l$:!$JQ99$5$l$?%U%!%$%k(B $B$@$1$,;D$j$^$9!%(B

$BNc(B:

	% echo matz > /tmp/junk
	% cat /tmp/junk
	matz
	% ruby -p -i.bak -e '$_.upcase!' /tmp/junk
	% cat /tmp/junk
	MATZ
	% cat /tmp/junk.bak
	matz

-I directory

$B%U%!%$%k$r%m!<%I$9$k%Q%9$r;XDj(B($BDI2C(B)$B$7$^$9!%;XDj$5$l$?%G%#%l(B $B%/%H%j$O(BRuby$B$NG[NsJQ?t(B(`$:')$B$KDI2C$5$l$^$9!%(B

-l

$B9TKv$N<+F0=hM}$r9T$$$^$9!%$^$:!$(B`$\'$B$r(B `$/'$B$HF1$8CM$K@_Dj$7(B, print$B$G$N=PNO(B $B;~$K2~9T$rIU2C$9$k$h$&$K$7$^$9!%$=$l$+$i(B, -n $B%U%i%0$^$?$O(B-p$B%U%i%0$,;XDj$5$l$F$$$k$H(B gets $B$GFI$_9~$^$l$?3F9T$N:G8e$KBP$7$F(B chop!$B$r9T$$$^$9!%(B

-n

$B$3$N%U%i%0$,%;%C%H$5$l$k$H%W%m%0%i%`A4BN$,(B sed -n$B$d(Bawk $B$N$h$&$K(B

	while gets
	  ...
	end

$B$G0O$^$l$F$$$k$h$&$KF0:n$7$^$9(B.

-p

-n$B%U%i%0$H$[$\F1$8$@$,(B, $B3F%k!<%W$N:G8e$KJQ?t(B`$_' $B$NCM$r=PNO$9$k$h$&$K$J$j$^$9!%(B

$BNc(B:

	% echo matz | ruby -p -e '$_.tr! "a-z", "A-Z"'
	MATZ

-r $B%U%!%$%kL>(B

$B%9%/%j%W%H$G;XDj$5$l$k%U%!%$%k$r(B require$B$7$^$9!%(B `-n'$B%*%W%7%g%s!$(B`-p'$B%*%W%7%g%s$H$H$b$K;H$&;~$KFC$KM-8z$G$9!%(B

-s

$B%9%/%j%W%HL>$KB3$/(B, `-'$B$G;O$^$k0z?t$r2r$NBg0hJQ?t$KCM(B $B$r@_Dj$7$^$9!%(B`--'$B$J$k0z?t0J9_$O2r$ARGV'$B$+$i $BNc(B:

	#! /usr/local/bin/ruby -s
	# prints "true" if invoked with `-xyz' switch.
	print "true\n" if $xyz

-S

$B%9%/%j%W%HL>$,(B`/'$B$G;O$^$C$F$$$J$$>l9g(B, $B4D6-JQ?t(B PATH$B$NCM$r;H$C$F%9%/%j%W%H$rC5$9$3$H$r;XDj$7$^(B $B$9!%(B $B$3$l$O!"(B`#!'$B$r%5%]!<%H$7$F$$$J$$%^%7%s$G!"(B `#!' $B$K$h$k #!/bin/sh exec ruby -S -x $0 "$@" #! ruby

$B%7%9%F%`$O:G=i$N9T$K$h$j!$%9%/%j%W%H$r(B/bin/sh $B$KEO$7$^$9!%(B/bin/sh$B$O(B2$B9TL\$r-x $B%*%W%7%g%s$K$h$j(B`#!'$B$G;O$^$j(B, "ruby"$B$H$$$&J8;zNs$r4^$`9T$^$G$r(B $BFI$_Ht$P$7$^$9!%(B

$B%7%9%F%`$K$h$C$F$O(B $0$B$OI,$:$7$b%U%k%Q%9$r4^$^$J(B $B$$$N$G!$(B`-S'$B$rMQ$$$F(BRuby$B$KI,MW$K1~$8$F%9%/%j%W%H$rC5$9$h$&$K(B $B;X<($9$kI,MW$,$"$j$^$9!%(B

-T [level]

$BIT=cEY%A%'%C%/$r9T$$$^$9!%%l%Y%k$r;XDj$9$k$H0BA4EY%l%Y%k$r$=(B $B$N%l%Y%k$K@_Dj$7$^$9!%(BCGI$B%W%m%0%i%`$J$I$G$O(B-T1 $BDxEY$r;XDj$7$F$*$/J}$,NI$$$G$7$g$&!%(B

-v

--verbose

$B>iD9%b!<%I!%5/F0;~$K%P!<%8%g%s$NI=<($r9T$$(B, $B%7%9%F%`JQ?t(B $VERBOSE$B$r(BTRUE$B$K%;%C%H$7$^$9!%$3$NJQ?t$,(BTRUE$B$G(B $B$"$k;~(B, $B$$$/$D$+$N%a%=%C%I$OiD9$J%a%C%;!<%8$r=PNO$7(B $B$^$9!%(B`-v'$B%*%W%7%g%s$,;XDj$5$l$F(B, $B$=$l0J30$N0z?t$,$J$$;~$K$O(B $B%P!<%8%g%s$rI=<($7$?8e(B, $B--version

Ruby$B$N%P!<%8%g%s$rI=<($7$^$9!%(B

-w

$B%P!<%8%g%s$NI=<($r9T$&;vL5$/>iD9%b!<%I$K$J$j$^$9!%(B

-x[directory]

$B%a%C%;!<%8Cf$N%9%/%j%W%H$rEOF($B%U%!%$%k(B $B$N=*$j(B), ^D($B%3%s%H%m!<%k(BD), ^Z($B%3(B $B%s%H%m!<%k(BZ)$B$^$?$OM=Ls8l(B__END__$B$G;XDj$5$l$^$9!%(B $B%G%#%l%/%H%jL>$r;XDj$9$k$H!$%9%/%j%W%H-X directory

$B%9%/%j%W%H-y

--yydebug

$B%3%s%Q%$%i%G%P%C%0%b!<%I!%%9%/%j%W%H$rFbItI=8=$K%3%s%Q%$%k$9(B $B$k;~$N9=J82r@O$N2aDx$rI=<($7$^$9!%$3$NI=<($OHs>o$K>iD9$J$N$G(B, $B%3%s%Q%$%i$=$N$b$N$r%G%P%C%0$9$k?M0J30$K$OI,MW$J$$$H;W$$$^$9!%(B

$BA0(B - $B - $BL\

matz@netlab.co.jp

$B%3%^%s%I%i%$%s%*%W%7%g%s(B

$B%3%^%s%I%i%$%s%*%W%7%g%s(B