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1. find
findÊÇ×î³£¼ûºÍ×îÇ¿´óµÄ²éÕÒÃüÁÄã¿ÉÒÔÓÃËüÕÒµ½ÈκÎÄãÏëÕÒµÄÎļþ¡£
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2. locate
locateÃüÁîÆäʵÊÇ“find -name”µÄÁíÒ»ÖÖд·¨£¬µ«ÊÇÒª±ÈºóÕß¿ìµÃ¶à£¬ÔÒòÔÚÓÚËü²»ËÑË÷¾ßÌåĿ¼£¬¶øÊÇËÑË÷Ò»¸öÊý¾Ý¿â£¨/var/lib/locatedb£©£¬Õâ¸öÊý¾Ý¿âÖк¬Óб¾µØËùÓÐÎļþÐÅÏ¢¡£Linuxϵͳ×Ô¶¯´´½¨Õâ¸öÊý¾Ý¿â£¬²¢ÇÒÿÌì×Ô¶¯¸üÐÂÒ»´Î£¬ËùÒÔʹÓÃlocateÃüÁî²é²»µ½×îб䶯¹ýµÄÎļþ¡£ÎªÁ˱ÜÃâÕâÖÖÇé¿ö£¬¿ÉÒÔÔÚʹÓÃlocate֮ǰ£¬ÏÈʹÓÃupdatedbÃüÁÊÖ¶¯¸üÐÂÊý¾Ý¿â¡£
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3. whereis
whereisÃüÁîÖ»ÄÜÓÃÓÚ³ÌÐòÃûµÄËÑË÷£¬¶øÇÒÖ»ËÑË÷¶þ½øÖÆÎļþ£¨²ÎÊý-b£©¡¢man˵Ã÷Îļþ£¨²ÎÊý-m£©ºÍÔ´´úÂëÎļþ£¨²ÎÊý-s£©¡£Èç¹ûÊ¡ÂÔ²ÎÊý£¬Ôò·µ»ØËùÓÐÐÅÏ¢¡£
whereisÃüÁîµÄʹÓÃʵÀý£º
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4. which
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