`which'
-------

which("FILENAME")
     ::  FILENAME Ф, `load()' ɤ߹ѥ֤̾.

RETURN
     ѥ̾
FILENAME
     ե̾ (ѥ̾) ޤ 0

   * `load()' ե򥵡˽äƥ, ե뤬¸
     ߤˤϥѥ̾ʸȤ, ¸ߤʤˤ 0 ֤.
   * μˤĤƤ `load()' 򻲾.

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


     `load'

