Linux View System Information commands and methods __linux

first, Linux to view server System Information methods:

1. View host name/kernel version/CPU architecture: # uname-n-r-p-o localhost.localdomain 2.6.32-220.el6.i686 i686

2. View Linux system type and version: # head-n 1/etc/issue CentOS Release 6.2 (Final)

3, view the language character set settings: # echo $LANG $LANGUAGE zh_cn. UTF-8 # cat/etc/sysconfig/i18n lang= "ZH_CN. UTF-8 "

4, view users: # whoami #查看当前登录用户名 # ID #查看当前用户及其属组 # w #查看当前登录的用户及运行的命令 # last #查看最近登录用户 # cat/etc/passwd|awk-f: ' {print '} ' #查看服务器上面所有用户

5, view other System Information: # Date ' +%y-%m-%d%h:%m:%s ' #查看系统时间 # ps-ef #查看运行进程 # uptime #查看服务器开机时长, number of users, average load # lsmod #查看所有加载的模块 # env #查系 environment variable # crontab-l #查看计划任务

Second, Linux view server hardware device information:

1. View server CPU information: # grep ' model name '/proc/cpuinfo|awk-f: ' {print $} ' |sed ' s# # #g ' |uniq-c 8 Intel (R) Xeon (r) CPU E5630 @ 2 .53GHz #8个核心的Intel Xeon CPU

2, view server CPU number: # getconf Long_bit 32

3. View network card model: # LSPCI |grep Ethernet Ethernet controller:broadcom Corporation netxtreme II BCM5709 Gigabit Ethernet (rev. 20)

4, view Other hardware information: # LSPCI-TV #查看所有PCI设备 # lsusb-tv #查看所有usb外设 # Cat/etc/sysconfig/keyboard #查看键盘布局

Third, Linux view server storage information:

1, view memory information: # sed-n '/memtotal\| memfree/p '/proc/meminfo memtotal:16426736 kb memfree:14171748 kb

2, view the swap space: # sed-n '/swaptotal\| swapfree/p '/proc/meminfo swaptotal:16771852 kb swapfree:16771852 kb

3, view the use of the Mount partition space: # DF-H File system capacity used available% mount point/dev/sda6 9.7G 570M 8.7G 7%//dev/sda7 3.9G 73M 3.7G 2%/tmp/dev/sda2 20G 2.5G 16G 14%/var/dev/sda8 388G 4.9G 363G 2%/storage/dev/sda5 15G 2.4G 12G 18%/usr/dev/sda1 92M 12M 75M 14%/boot tmp FS 7.9G 0 7.9G 0%/dev/shm

Four, Linux view server network information:

1, view the Linux system host name: # hostname Localhost.localdomain

2, view the server IP address: # ifconfig|grep ' inet addr: ' |grep-v ' 127.0.0.1 ' |cut-d:-f2|awk ' {print '} ' 192.168.17.238 192.168.1.9

3. View Linux Gateway: # route |grep default default 192.168.1.1 0.0.0.0 UG 0 0 0 em1

4, view the Linux port: # netstat-lntp #查看监听 (Listen) port # NETSTAT-ANTP #查看所有建立的TCP连接

5. View Linux Open service: # chkconfig--list|grep enabled #查看开启的服务 sshd 0: Off 1: Off 2: Enable 3: Enable 4: Enable 5: Enable 6: Close httpd 0: Close 1: Close 2: Close 3: Turn off 4: Off 5: Close 6: Off

6. View Server DNS configuration: # cat/etc/resolv.conf nameserver 192.168.0.66 nameserver 202.106.0.20

7, Other network information: # iptables-l #查看防火墙规则 # route-n #查看路由表 # netstat-s #查看网络统计信息