Linux use notes
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Based on Fedora 8 version:
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1. No common command like ifconfig in os?
Root cause is the standard search path not include /sbin and /usr/sbin. Try to include them in /etc/profile. As belows:
#Kenny add /sbin and /usr/sbin here.
export PATH=.:/sbin:/usr/sbin:$PATH
2. install package in Fedora?
yum install "package name"
yum upgrade "package name"
rpm -qa | grep “samba”
3. install samba ui config program?
a. yum install system-config-samba.
b. set samba service is trusted services in firewall.
c. set samba_enable_home_dirs and samba_export_all_ro in SELinux configure option.
4. VMware host connect with target, without network line.
a. set vmvare network connect mode to NAT in right-bottom network icon, default is bridged mode;
b. in host machine, try (cmd -> ipconfig /all). Check VMNET8's IP address, suppose it is 192.168.111.2;
c. in target machine, set IP address the same network range in step b, like 192.168.111.3, and set Gateway and DNS
to vmware NAT gateway ip in menu(if not sure, try DHCP first, and check info from network manager);
d. restart target machine, host can ping the target ip now.
Note: 1. No need to set host physical address, since it is not related to it.
2. If host machine is connect by external network, then target can ping host machine IP, like 172.16.200.22.
And target can also connect to Internet.
3. For target connect Internet network, I use bridge connect mode and DHCP is ok too.
ref: http://hi.baidu.com/msingle/blog/item/d8a730ed4f6ab6dfb31cb15c.html
5. Enable telnet server?
1. query system whether has telnet and telnet-server, if not have, in
相关文档：
将可移动设备连入系统时，系统的后台中会依次发生如下事件：
l 内核检测到新硬件插入，然后分别通知hotplug和udev。前者用来装入相应的内核模块(如usb-storage)，而后者用来在/dev中创建相应的设备节点(如/dev/sda1)。
l udev创建了相应的设备节点之后，会将这一消息通知hal的守护程序(hald)。当然udev还得保证新 ......
ls -l|grep ^d ----列出当前目录下的文件夹
ls -l|grep ^d|grep "tmp" ----列出当前目录下明子含有"tmp"的文件夹
for dir in `ls -l ~/dxy/|grep ^d | awk '{print $9}'` ---- awk '{print $9}' ,只print 文件夹的名字
do
echo "==== $dir"
cd ~/dxy;cd $dir/
t=`ls -l|grep ^d|grep " ......
说明：本文以主要为转载内容，同时加入了我在使用过程中遇到问题对其的修正！！！！！！！！！
先说statfs结构：
#include <sys/vfs.h> /* 或者 <sys/statfs.h> */
int statfs(const char *path, struct statfs *buf);
int fstatfs(int fd, struct statfs *buf);
参数： ......
当在Linux下频繁存取文件
后，物理内存会很快被用光，当程序
结束后，内存不会被正常释放，而是一直作为caching。这个问题，貌似有不少人在问，不过都没有看到有什么很好解决
的办法。那么我来谈谈这个问题。
一、通常情况
先来说说free命令
：
引用
[root@server ~]# free -m
total used free shared buffers cac ......
先用who命令查看所有登陆终端
#who -uH
输出如下：
NAME LINE TIME IDLE PID COMMENT
root :0 2010-03-01 19:13 ? & ......
