linux系统信息查询命令集
1.查看内核版本命令：
[root@test asianux-release]# cat
/proc/version
2.查看linux系统版本
1）[root@test asianux-release]# lsb_release -a
LSB Version: 3.0
Distributor ID: Asianux
Description: Asianux release 2.0 (Trinity SP2)
Release: 2.0
Codename: TrinitySP2
2)[root@test etc]# ls -trl /etc/*release*
-rw-r--r-- 1 root root 18 8?? 5 2005 lsb-release
-rw-r--r-- 1 root root 56 11?? 16 2006 redhat-release
-rw-r--r-- 1 root root 45 11?? 24 2006 redflag-release
-rw-r--r-- 1 root root 33 11?? 24 2006 miraclelinux-release
-rw-r--r-- 1 root root 41 11?? 24 2006 haansoft-release
-rw-r--r-- 1 root root 34 11?? 30 2006 asianux-release
3)[root@test etc]# rpm -q redhat-release
redhat-release-4AS-5.5.1AX
3.查看系统是32位还是64位
1）[root@test
etc]# getconf LONG_BIT
32
[root@test ~]# getconf WORD_BIT
32
2）
[root@test etc]# file /sbin/init
/sbin/init: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for
GNU/Linux 2.2.5, dynamically linked (uses shared libs), stripped
4.查看路由表
[root@test ~]# netstat -rn
Kernel IP routing table
Destination
Gateway
Genmask Flags MSS
Window irtt Iface
192.168.1.0
0.0.0.0
255.255.255.0 U 0
0 0 eth0
0.0.0.0
192.168.1.1
0.0.0.0
UG 0 0
0 eth0
5.查看打开了哪些端口
[root@test ~]# netstat -an
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local
Address
Foreign
Address
State
tcp 0 0
0.0.0.0:6000
0.0.0.0:*
LISTEN
tcp 0 0
0.0.0.0:113
0.0.0.0:*
LISTEN
tcp 0 0
0.0.0.0:21
0.0.0.0:*
LISTEN
tcp 0 0
0.0.0.0:23
0.0.0.0:*
LISTEN
tcp 0 0
127.0.0.1:34220
127.0.0.1:1158
ESTABLISHED
tcp 0 0
127.0.0.1:34216
127.0.0.1:1158
ESTABLISHED
tcp 0 0
127.0.0.1:34153
127.0.0.1:1521
ESTABLISHED
tcp 0 0
127.0.0.1:34218
127.0.0.1:1521
ESTABLISHED
tcp 0 0
127.0.0.1:34201
127.0.0.1:1521
ESTABLISHED
tcp 0 0
:::32768
:::*
LISTEN
tcp 0 0
:::3938
:::*
LISTEN
tcp 0 0
:::1158
:::*
LISTEN
tcp 0 0
:::5520
:::*
LISTEN
tcp 0 0
:::6000
:::*
LISTEN
tcp 0 0
:::1521
:::*
LISTEN
tcp 0 0
:::22
:::*
LISTEN
tcp 0 0
::1:34211
::1:34210
TIME_WAIT
tcp 0 0
::ffff:192.168.1.88:22
::ffff:192.168.1.54:53041 ESTABLISHED
tcp 0 0
::ffff:127.0.0.1:1521
::ffff:127.0.0.1:34153 ESTABLISHED
tcp 0 52
::ffff:192.168.1.88:22
::ffff:192.168.1.54:53021 ESTABLISHED
tcp 0 0
::ffff:127.0.0.1:1521
::ffff:127.0.0.1:34201 ESTABLISHED
tcp 67 0
::ffff:127.0.0.1:1158
::ffff:127.0.0.1:34220 ESTABLISHED
tcp 67 0
::ffff:127.0.0.1:1158
::ffff:127.0.0.1:34216 ESTABLISHED
tcp 0 0
::ffff:127.0.0.1:1521
::ffff:127.0.0.1:34218 ESTABLISHED
udp 0 0
192.168.1.88:9022
202.103.24.68:53
ESTABLISHED
udp 0 304
192.168.1.88:9024
202.103.44.150:53
ESTABLISHED
udp 0 0
::1:9003
:::*
udp 0 0
::1:9004
:::*
udp 0 0
::1:9005
:::*
udp 0 0
:::9010
:::*
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags
Type
State I-Node Path
unix 2 [ ACC ]
STREAM LISTENING 65085
/var/tmp/.oracle/s#13317.1
unix 2 [ ACC ]
STREAM LISTENING 65087
/var/tmp/.oracle/s#13317.2
unix 2 [ ACC ]
STREAM LISTENING
5914 /tmp/.font-unix/fs7100
unix 2 [ ACC ]
STREAM LISTENING
7147 /tmp/.X11-unix/X0
unix 2 [ ]
DGRAM
6010 @/var/run/hal/hotplug_socket
unix 2 [ ACC ]
STREAM LISTENING
5680 /var/run/acpid.socket
unix 5 [
]
DGRAM
5543 /dev/log
unix 2 [
]
DGRAM
3141 @udevd
unix 2 [ ACC ]
STREAM LISTENING
5977 /var/run/dbus/system_bus_socket
unix 2 [
]
DGRAM
67520
unix 2 [
]
STREAM CONNECTED 67359
unix 3 [
]
STREAM CONNECTED
7627 /tmp/.X11-unix/X0
unix 3 [
]
STREAM CONNECTED 7626
unix 3 [
]
STREAM CONNECTED
7612 /tmp/.font-unix/fs7100
unix 3 [
] STREAM
CONNECTED 7611
unix 3 [
]
STREAM CONNECTED
7616 /tmp/.X11-unix/X0
unix 3 [
]
STREAM CONNECTED 7153
unix 3 [
]
STREAM CONNECTED
6009 /var/run/dbus/system_bus_socket
unix 3 [
]
STREAM CONNECTED 6008
unix 3 [
]
STREAM CONNECTED 5980
unix 3 [
]
STREAM CONNECTED 5979
unix 2 [
]
DGRAM
5842
unix 2 [
]
DGRAM
5804
unix 2 [
]
DGRAM
5551
查看端口对应的服务
[oracle@test ~]$ cat /etc/services | grep
-w "21"
# 21 is registered to ftp, but also used by fsp
ftp
21/tcp
ftp
21/udp fsp fspd
