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# ls -l /bin/ln /sbin/sln
-rwxr-xr-x    1 root     root        23000 Jan 14 00:36 /bin/ln
-rwxr-xr-x    1 root     root       381072 Jan 14 00:31 /sbin/sln
ÈçÄúËù¼û£¬sln µÄ´óС³¬¹ý ln Ê®±¶¡£ln ±È sln СÕâô¶àÊÇÒòΪËüÊǶ¯Ì¬¿ÉÖ´ÐгÌÐò¡£¶¯Ì¬¿ÉÖ´ÐгÌÐòÊDz»ÍêÕûµÄ³ÌÐò£¬ËüÒÀ¿¿Íⲿ¹²Ïí¿âÀ´ÌṩÔËÐÐËùÐèµÄÐí¶àº¯Êý¡£
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# ldd /bin/ln
        libc.so.6 => /lib/libc.so.6 (0x40021000)
        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
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b. cp jdk-6u17-linux-i586-rpm.bin /usr/local/
c. chmod a+x jdk-6u17-linux-i586-rpm.bin
d. sh jdk-6u17-linux-i586-rpm.bin  ½ÓÊÜЭÒéyes£¬°²×°Íê³É
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