linux常用查看命令

查看系统

[oracle@dev ~]$ uname
Linux
[oracle@dev ~]$ uname -i
x86_64

查看机器名及对应IP

[oracle@dev ~]$ hostname
dev
[oracle@dev ~]$ hostname -i
127.0.0.1

查看语言

[oracle@dev ~]$ echo $LANG
zh_CN.UTF-8

查看环境变量

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[oracle@dev ~]$ env

查看内存

[oracle@dev ~]$ free
             total       used       free     shared    buffers     cached
Mem:       2234368    2214316      20052          0     107840     544796
-/+ buffers/cache:    1561680     672688
Swap:      5144568          0    5144568

查看CPU使用率

[root@oracle ~]# top
top - 15:24:56 up 13 days, 20:51, 3 users, load average: 0.03, 0.04, 0.01
Tasks: 256 total,   1 running, 255 sleeping,   0 stopped,   0 zombie
Cpu(s): 1.3%us, 0.5%sy, 0.0%ni, 98.2%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 16445936k total, 15835608k used,   610328k free,   401916k buffers
Swap: 8385920k total,        0k used, 8385920k free, 11460552k cached

PID USER      PR NI VIRT RES SHR S %CPU %MEM    TIME+ COMMAND
3130 couchbas 20   0 323m 156m 1880 S 3.7 1.0 982:23.47 beam.smp
3606 couchbas 20   0 389m 200m 2096 S 1.0 1.2 281:58.23 memcached
3752 oracle    -2   0 2293m 15m 13m S 0.7 0.1 128:42.58 oracle

查看硬盘
[oracle@dev ~]$ df
文件系统               1K-块        已用     可用已用% 挂载点
/dev/mapper/VolGroup00-LogVol00
                     198036472 19699804 168114692 11% /
/dev/sda1               101086     14345     81522 15% /boot
tmpfs                  1116776         0   1116776   0% /dev/shm
none                   1116776       104   1116672   1% /var/lib/xenstored

查看JDK

[oracle@dev ~]$ java -version
java version "1.6.0_39"
Java(TM) SE Runtime Environment (build 1.6.0_39-b04)
Java HotSpot(TM) 64-Bit Server VM (build 20.14-b01, mixed mode)

查看当前目录

[oracle@dev ~]$ pwd
/home/oracle

查看文件
[oracle@dev ~]$ ls
bea Desktop nohup.out

查看进程
[oracle@dev ~]$ ps
PID TTY          TIME CMD
5778 pts/2    00:00:00 bash
6014 pts/2    00:00:00 ps

查看文件

[oracle@dev ~]$ cat /etc/hosts

编辑

[oracle@dev ~]$ vi /etc/hosts

[oracle@dev ~]$ vim /etc/hosts vim有一个好处可以复制

linux常用查看命令

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