linux自己常用命令总汇--不定时更新

finger root

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清除用户的口令
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passwd -d user
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可以同时创建目录
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mkdir -p
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ssh命令
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ssh -p 12333 root@216.230.230.114
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kill命令
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终止httpd程序：
killall httpd

强制终止httpd程序：
killall -9 httpd

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找出passwd中的所有用户名
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cut -d ‘:’ -f1 /etc/passwd
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语言设置
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vi /etc/sysconfig/i18n
etc/default/locale
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ubuntu切换到root
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sudo -s

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ubuntu的ssh安装
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apt-get install openssh-server

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debian新加网卡
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rm /etc/udev/rules.d/70-persistent-net.rules

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rpm安装
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rpm -ivh nmap*******.rpm

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namp的使用
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nmap -sT 192.168.1.1 扫描此ip开放的端口
nmap -sT -P0 -p 80 192.168.1.1 扫描此ip的80端口是否开放,-P0表示ping无响应也探测端口。

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linux默认路由
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/etc/sysconfig/network

NETWORKING=yes
GATEWAY=192.168.0.1
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启动自动执行命令：
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/etc/rc.d/rc.local

route add default gw x.x.x.x dev eth0
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linux时钟设置
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date -s 11/30/2011
date -s 12：37：00
------------------------------------------------------本文出自 “初出茅庐” 博客，谢绝转载！