查看所用的ubuntu是多少位的

用这个看一下: file /bin/ls
如果显示像这样:
/bin/ls: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.6.0, dynamically linked (uses shared libs), stripped
说明是:32 bit;
如果显示像这样:
/bin/ls: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), for GNU/Linux 2.6.0, dynamically linked (uses shared libs), stripped
这是64 bit.

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