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1.find /etc -name my.so
2.locate ÊÇÓÃÀ´Í¨¹ýÎļþÃûËÑË÷ÎļþµÄ¹¤¾ß£¬ËüµÄÓ÷¨Ò²±È½Ï¼òµ¥¡£locate µÄÓ¦Óã¬Ê×ÏÈҪͨ¹ýupdatedb½¨Á¢Ë÷ÒýÊý¾Ý¿â£¬È»ºó²ÅÄÜÓ¦Óã»Èç¹ûÄúа²×°ÁËÈí¼þ»òÕß´æ·ÅÁËеÄÎļþ£¬Ò²ÒªÏÈÔËÐÐupdatedbÃüÁÒÔÉú³É×îÐÂË÷Òý¿â¡£
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ÎÒÃÇÒªÏÈÔËÐÐupdatedb£»
[root@localhost ~]# updatedb
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[root@localhost ~]# locate my.so
3.whereis ÊÇÀ´Ñ°ÕÒÃüÁîµÄ¶þ½øÖÆÎļþ£¬Í¬Ê±Ò²»áÕÒµ½Æä°ïÖúÎļþ£»
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[root@localhost ~]# whereis fdisk
fdisk: /sbin/fdisk /usr/share/man/man8/fdisk.8.gz
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[root@localhost ~]# whereis grub
grub: /sbin/grub /etc/grub.conf /usr/share/grub /usr/share/man/man8/grub.8.gz
4.which ºÍwhere ÏàËÆ£¬Ö»ÊÇÎÒÃÇËùÉèÖõĻ·¾³±äÁ¿ÖÐÉèÖúõÄ·¾¶ÖÐѰÕÒ£»±ÈÈ磻
[root@localhost ~]# which fdisk
/sbin/fdisk
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[root@rh73 ~]# rpm -ivh
/mnt/cdrom/RedHat/RPMS/telnet-server-0.17-20.i386.rpm
[root@rh73 ~]# rpm -ivh
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