`which'
-------

which("FILENAME")
     :: $B0z?t(B FILENAME $B$KBP$7(B, `load()' $B$,FI$_9~$`%Q%9L>$rJV$9(B.

RETURN
     $B%Q%9L>(B

FILENAME
     $B%U%!%$%kL>(B ($B%Q%9L>(B) $B$^$?$O(B 0

   * `load()' $B$,%U%!%$%k$r%5!<%A$9$k<j=g$K=>$C$F%5!<%A$7(B,
     $B%U%!%$%k$,B8:_$9$k>l9g$K$O%Q%9L>$rJ8;zNs$H$7$F(B, $BB8:_$7$J$$>l9g(B
     $B$K$O(B 0 $B$rJV$9(B.

   * $B%5!<%A$N<j=g$K$D$$$F$O(B `load()' $B$r;2>H(B.

   * Windows $BHG$b%G%#%l%/%H%j$N%;%Q%l!<%?$H$7$F(B `/' $B$rMQ$$$k(B.

     [0] which("gr");
     ./gb/gr
     [1] which("/usr/local/lib/gr");
     0
     [2] which("/usr/local/lib/asir/gr");
     /usr/local/lib/asir/gr

$B;2>H(B
     *Note `load': load.

