e$B$U$J$P$G$9!#e(B
e$B<ALd$G$9$,!"e(B
system “date\000date”
e$B$OLdBj$J$/<B9T$G$-$^$9!#e(Bexec e$B$de(B spawn e$B$bF1$8$h$&$G$9!#e(B
date\000date
e$B$O!"e(B1.8 e$B$G$O%(%i!<$K$J$j$^$;$s$,!"e(B1.9
e$B$G$O%(%i!<$K$J$k$h$&$G$9!#e(B
e$B$3$l$O0U?^$5$l$?7k2L$J$N$G$7$g$&$+!#e(B
e$B$^$?!"e(Bsystem ‘’ e$B$Oe(B 1.8 e$B$G$O%(%i!<$K$J$i$:!"e(B1.9
e$B$G$O%(%i!<$K$J$j!"e(B
`` e$B$Oe(B 1.8 e$B$G$O%(%i!<$K$J$je(B
(e$B%(%i!<$H$O8@$o$J$$$+$b$7$l$J$$e(B)e$B!"e(B1.9 e$B$G$Oe(B
e$B%(%i!<$K$J$i$J$$$h$&$G$9!#e(B
e$B2?8N$3$&$J$k$N$G$7$g$&$+!#e(B
ruby 1.8.5 (2006-08-25) [i386-freebsd5.4]
ruby 1.9.0 (2006-09-02) [i386-freebsd5.4]