在linux下查看内核版本、gcc版本、操作系统多少位等参数

1. 查看linux版本

cat /etc/issue
Ubuntu 11.04 \n \l

2. 查看内核版本

1)cat /proc/version
Linux version 2.6.38-13-generic (buildd@rothera) (gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu4) ) #57-Ubuntu SMP Mon Mar 5 18:10:14 UTC 2012

2) uname命令

uname -a
Linux ubuntu 2.6.38-13-generic #57-Ubuntu SMP Mon Mar 5 18:10:14 UTC 2012 i686 i686 i386 GNU/Linux

[ -------------------------------------------------------------------------------
-a, --all print all information, in the following order, 查看全部信息
except omit -p and -i if unknown:
-s, --kernel-name print the kernel name 查看内核名字
-n, --nodename print the network node hostname
-r, --kernel-release print the kernel release 查看内核发行版本
-v, --kernel-version print the kernel version 查看内核版本
-m, --machine print the machine hardware name
-p, --processor print the processor type or "unknown"
-i, --hardware-platform print the hardware platform or "unknown"
-o, --operating-system print the operating system 查看操作系统
--help display this help and exit
--version output version information and exit
--------------------------------------------------------------------------------------] 3.查看系统位数

1) getconf WORD_BIT
32

2)file /bin/bash
/bin/bash: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.15, stripped

4. 查看gcc版本

gcc --version
gcc (Ubuntu/Linaro 4.5.2-8ubuntu4) 4.5.2