Determine whether the Linux system is 32-bit or 64-bit by using Shell scripts

Determine whether the Linux system is 32-bit or 64-bit by using Shell scripts

Output 32 or 64 rows.

You can use "getconf WORD_BIT" and "getconf LONG_BIT" to obtain the number of digits of word and long. In a 64-bit system, 32 and 64 are obtained respectively.

The reference code is as follows:

View source? 1 ldconfig 2 if [ $(getconf WORD_BIT) = '32' ] && [ $(getconf LONG_BIT) = '64' ] ; then 3 ln -s /usr/ local /mysql/lib/mysql /usr/lib64/mysql 4 else 5 ln -s /usr/ local /mysql/lib/mysql /usr/lib/mysql 6 fi

Other methods 1: Execute the command file/sbin/init

1 [root@localhost jianbao] # file /sbin/init 2 /sbin/init: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped

In 32-bit Linux, 64-bit is displayed.

For example, the result of running on another 64-bit machine:

1 [root@edunosql ~] # file /sbin/init 2 /sbin/init: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped

Method 2: uname-

32-bit: Linux localhost. localdomain 2.6.32-431.17.1.el6.i686 #1 SMP Wed May 7 20:52:21 UTC 2014 i686 i686 i386 GNU/Linux

64-bit: Linux demolinux 2.6.32-431.11.2.el6.x86 _ 64 #1 SMP Tue Mar 25 19:59:55 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

Method 3: Use "getconf WORD_BIT" and "getconf LONG_BIT" to obtain the number of digits of word and long. The 64-bit system should obtain 32 and 64 respectively.