Linux学习二 —— 系统管理命令的整理
主要自我学习过程中的一些整理：1、查看开机启动项
# ntsysv
运行上述命令后会有界面出现。
2、查看Linux版本
# lsb_release -aLSB Version: :core-3.1-amd64:core-3.1-ia32:core-3.1-noarch:graphics-3.1-amd64:graphics-3.1-ia32:graphics-3.1-noarchDistributor ID: CentOSDescription: CentOS release 5.5 (Final)Release: 5.5Codename: Final# uname -aLinux SC-026.cfind.com 2.6.18-194.8.1.el5 #1 SMP Thu Jul 1 19:04:48 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux# uname -px86_64
3、实时查看进程的动态
# toptop - 16:25:28 up 23 days,7:57,6 users,load average: 0.47, 0.58, 0.81Tasks: 157 total, 1 running, 155 sleeping, 0 stopped, 1 zombieCpu(s):3.2%us,6.3%sy,0.0%ni, 90.1%id,0.3%wa,0.0%hi,0.0%si,0.0%stMem: 4042036k total,4017480k used, 24556k free, 26688k buffersSwap:4192924k total,2148940k used,2043984k free,1367800k cachedPID USER PRNIVIRTRESSHR S %CPU %MEM TIME+COMMAND 30038 root 5 -10 2540m 1.8g36m S 12.2 47.5 708:02.21 vmware-vmx 以下省略
5、查看系统时间
# date2012年 11月 01日 星期四 16:25:49 CST
6、查看文件系统情况
# df -h文件系统 容量已用 可用 已用% 挂载点/dev/sda3 19G9.9G8.1G56% //dev/sda6 596G101G465G18% /data/dev/sda2 284G9.7G260G 4% /home/dev/sda1 99M 18M 77M19% /boottmpfs 2.0G 02.0G 0% /dev/shm192.168.15.89:/opt/data 2.7T2.2T359G86% /opt/data192.168.15.20:/cdata3
7、修改密码
# passwdChanging password for user root.New UNIX password: Retype new UNIX password: passwd: all authentication tokens updated successfully.
8、显示内存状态
# free total used free shared buffers cachedMem: 4042036 4016832 25204 0 31440 1360160-/+ buffers/cache: 2625232 1416804Swap: 4192924 2147496 2045428
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