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[GNU long option] [option] script-file ...GNU Long options:--debug--debugger--dump-po-strings--dump-strings--help--init-file--login--noediting--noprofile--norc--posix--protected--rcfile--rpm-requires--restricted--verbose--versionShell options:-IRSD or-c Command Or-o shopt_option (invocation only)-ABEFHKMNPTUVXBCHP or-o optionType ' sh-c ' "help set" ' For more information about shell options.Type ' Sh-c help ' For more information about shell builtin

The tcpdump command is used to crawl network packets, which can print header information for all packets that pass through the network interface, or you can use the-w option to save the packet to a file for later analysis. Common usage:Tcpdump-nn-i ENS33---> Crawl packets that pass through the NIC Ens33Tcpdump-nn Port 80-i Ens33---> Crawl 80-Port packetsTcpdump-nn not port, and host 192.168.1.100---> Crawl non 22 ports and packets from IP 192.168.1.100TCPDUMP-NN-C 100-w/tmp/

Bidirectional 1-n and bidirectional n-1 are exactly the same two situations Bidirectional 1-n need to be at one end of the 1 to access the end of N, and vice versa. Domain Model: A Many-to-one bidirectional association from order to customer needs to define a custome

ASC: Ascending Desc: Descending How to connect to a database: 1.sqlplus 2. Sign in with Sqlplus and enter user and password in client login 3.isqlplus sign-in on the web Problems encountered: During the installation process, the Scott user was not unlocked. Solution: 1. Input Sqlplus sys as SYSDBA 2. Input Sqlplus Sys/tiger as Sysdba/[email protected] Fourth C

Administrators Group-> Click the Members button below--> Select Network Service--> Click the Add button--> Click OK to return to the new login dialog box--> guarantee the authentication type is Windows Authentication and allow access--> Click OK--> Close Enterprise Manager Forget the important point to add mspetshop These two DB access rights Third Step Rerun the ASP.net program, and the database connection string chooses Windows authentic

Label:Win10In short, the previous steps are: 1 download and install; 2 Configure environment variables after installation; 3: Login Database1: InstallationMySQL has installed version and direct decompression can be used, it is said that the great God is installed directly decompression, but in view of their own small white, the entire installation version. As for the specific steps of self-reference Niang b

Iv. conclusion of the experiment1. Practice command history, aliases, and special character usages in the shell (4th. 4.2, Section ~4.5)2. Shell Command Application Exercise(1) The use of the following documents is briefly reviewed through the Help information①/ETC/PASSWD (Hint: View this file description description via man 5 passwd)/ etc /passwd Store The password file, each user in the file has a corresponding record line, it records some basic pr

, Str_repeat,str_pad1) str_repeat (x,num) repeats a character how many timesApplication Scenario: Our news portal introduction is not open, need to use ... Instead, then we can use this repetition and then show2) Str_pad ($str, ' X ', 10) fills the specified character string to the specified lengthApplication scenario: For example, we have a requirement to unify some fields into a string of the same length, and then transfer to the background processing, you can use this13, Sha1,md5,hex2bin,bin2

Asp. NET and ASP. HttpApplication request processing pipelines have common parts and differences, this series will experience the 19 key aspects of the ASP. Web MVC request processing pipeline life cycle. ① take IIS6.0 as an example, the first is to maintain a working process by w3wp.exe ② If this is the first time loading, the. NET runtime is loaded by Aspnet_isapi.dll ③ A worker process has an application pool, which can host more than one application d