1¡¢Ö´ÐÐÃüÁî²é¿´ÏµÍ³ÊÇ64λµÄ# getconf LONG_BIT
64
2¡¢°²×°µÄÊÇjdk1.7°æ±¾£¬64λµÄ
# file /opt/jdk1.7/bin/java
/opt/jdk1.7/bin/java: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.9, not stripped
3¡¢Ö´ÐÐÃüÁî java -version
# java -version
bash: /opt/jdk1.7/bin/java ...
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