查看linux系统的cpu、内存和版本信息

cat /proc/cpuinfo |grep "physical id"|sort |uniq|wc –l

cat /proc/cpuinfo |grep "processor"|wc –l

cat /proc/cpuinfo |grep "cores"|uniq

cat /proc/cpuinfo |grep MHz|uniq

# uname -a
Linux euis1 2.6.9-55.ELsmp #1 SMP Fri Apr 20 17:03:35 EDT 2007 i686 i686 i386 GNU/Linux

cat /etc/issue | grep Linux
Red Hat Enterprise Linux AS release 4 (Nahant Update 5）

cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
Intel(R) Xeon(R) CPU   E5410   @ 2.33GHz

cat /proc/cpuinfo | grep physical | uniq -c
4    physical id      : 0
4    physical id      : 1
(说明实际上是两颗4核的CPU)

getconf LONG_BIT
32 (说明当前CPU运行在32bit模式下, 但不代表CPU不支持64bit)

cat /proc/cpuinfo | grep flags | grep ' lm ' | wc -l 
8 (结果大于0, 说明支持64bit计算. lm指long mode, 支持lm则是64bit)

dmidecode | grep 'Processor Information'

cat /proc/meminfo

uname -a 
Linux euis1 2.6.9-55.ELsmp #1 SMP Fri Apr 20 17:03:35 EDT 2007 i686 i686 i386 GNU/Linux

cat /etc/issue | grep Linux 
Red Hat Enterprise Linux AS release 4 (Nahant Update 5)

dmidecode | grep "Product Name"

dmesg | grep -i eth

lsb_release -a