Linux— 查看系统的位数

[root@zf-test-web01-4 ~]# file /bin/ls           #"/bin/ls" is a binary file

/bin/ls: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=aa7ff68f13de25936a098016243ce57c3c982e06, stripped