To talk about unix / linux for file operations in these functions，These functions for linux basically meet our requirements in any document，
First talk about the open function
In linux you want to operate on the file must first open the file and then the corresponding processing，Why should we do it? That is because the process and not directly manipulate files between，To process the file first to use the system call between processes and documents connected to a resume operations，This connection becomes a file descriptor，Called as a process leading to the kernel by the kernel[……]
The new updated version of the flash in some cases require a lot of courage，For example, yesterday，After routing update Flash version of Safari has led to the collapse can not afford。
If you're not careful and I encountered the same problem，Then you can followHereThe official way to manually remove the plug，If you bother to look into the points，Now I write that
The brief resolution process
Use uninstall to uninstall Flash
If your system is 10.6-10.9 version，Then you can try to download the official uninstaller to uninstall Flash。
[Downlin[……]
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 |
(2014年04月23日10:21:08修订)//（2014年04月29日19:16:30修订） 假定已创建VLAN200；配置好宽带ont6 //开启全局组播： ZXAN(config)#igmp enable //开启对应onu端口组播： ZXAN(config)#interface epon-onu_0/1/1:6 ZXAN(config-if)#igmp enable ZXAN(config-if)#igmp version v2(v3)//版本根据实际情况选择 ZXAN(config)#igmp mvlan 200//创建组播VLAN ZXAN(config)#igmp mvlan 200 enable//激活组播VLAN ZXAN(config)#igmp mvlan 200 work-mode snooping//运行模式为监听 ZXAN(config)#igmp mvlan 200 source-port smartgroup1 //设置组播源 ZXAN(config)#igmp mvlan 200 receive-port epon-onu_0/1/1:6 //设置接收源 ZXAN(config)#igmp mvlan 200 group 224.1.1.1//配置组播地址 ZXAN(config)#igmp mvlan 200 group 224.1.1.1 bandwidth 10240//配置组播带宽 |
[……]
ZTE c200 broadband services following configuration summary records(2014On April 23 10:14:44Revise)(April 29, 2014 19:13:31Amendment)
[code lang=”c”]//Sign board：
ZXAN(config)#add-rack rackno 0 racktype ZXPON
ZXAN(config)#add-shelf shelfno 0 shelftype ZXA10C200-A
FROM[……]
UnixLittle understanding of architecture
It can be defined as a software operating system in the strict sense，The software controls the computer hardware resources，Provider operating environment for personal understanding of hardware and software wealthy。We call such software kernel (kernel），It is relatively small，Located in the center of the environment
Kernel system call interface is called (system calls) Shared libraries built on top of the system call interface，Applications can either use the shared library，You can also use the system call。
ShellIt is a special application[……]
Three modes switch port
On the switch，There are three commonly used configuration mode，Respectively Access (Access)，Trunk (trunk or trunk) as well as Hybrid (Hybrid)，These three interfaces operating mode determines the corresponding interface for processing the attitude data packets on the switch。Nowadays，Routing to elaborate on these three models。
label
Since the switch has divided the virtual LAN VLAN function is，Therefore, it is allowed to switch into the Ethernet frame data marked with a tag，VLAN is used to identify different data flows，To be forwarded。This is what we often[……]
Observance of the whereabouts of the 100th article，，，Although the content is somewhat illegible
Yesterday, see route on the main (int argc，char *argv[]) The article feels written brief said such a function
Of course first contact functions of this function is not the main (int argc，char *argv[]) But the main (int AC, char * of[]）
They use the same。
Each c language program must have a function called main of[……]
============= bash shell to manage files ==============
create、copy、delete、mobile、View、edit、compression、Competence、Find
one、Features Linux directory structure
Windows: To organize a plurality of documents C:\ D:\ E:\
Linux: In the manner of a single organized file /
/Directory Structure：
[root @ gaolei ~]# ls /[……]
Universal Serial Bus
USB's full name is this,，A blink of an eye，USB 1.0 standard came from the 3.0，of course，Little blue box 3.0 also does not fully into our lives，As it is now around us phone、flat、SLR，Almost still in use USB2.0 standard，Occasionally，People around him or will not tell exactly which line corresponds to which device，What can mix，Which can not。
[warning]
The line can not be mixed is not inserted into the device，Because different shapes，Can insert the，a few[……]