Linux

1 Db2start2 Db2stop Force3 exit4 Db2set Db2comm=tcpip5 vi/etc/services6 Netstat-rn|more7 Netstat-an|more8 Netstat-an|grep 500009 DB2 update dbm CFG using svcename 50000Ten Netstat-an|grep 50000Db2startVi/etc/services50000 Netstat-an|grep+

Three ways to install packages1.RPM Tools2.yum tool (can install dependent packages automatically)3. Source code PackageIntroduction and use of RPM tools1. First mount the optical drive:which-2.20-7.el7.x86_64.rpm

Help information for the date command[Email protected] source]# date--helpUsage: date [options] ... [+ format]Or: Date [-u|--utc|--universal] [MMDDHHMM[[CC]YY][.SS]]Displays the current time in the given format, or sets the system date.-D,--date=

When the program is IO, the IO is blocked if the data is not ready. When a process has multiple open files, such as a socket, then all files that are ready to be read and written will be affected by blocking and cannot be manipulated. Without

Yum Installation tool is similar to AppStore, the Yum tool can be used to easily download the required programs, while the Yum tool will automatically check the program dependencies, and install the appropriate dependency package, a bit like windows,

The Find command can find the specified file or directory based on the given path strength and expression. There are many options for the find parameter, and it is powerful to support regular expressions. Combined with pipelines can achieve complex

Azure Linux VMSKey LoginPrerequisites:Two Linux virtual machines are created on Azure , and the other one is already using the "ssh-keygen-t RSA" command to create the public key. ( If you do not need to modify, directly enter two times, the default

Bridges and Switches2-Port switch = BridgeSwitch: Works on the data link layer, based on the source Mac Learning (control layer), the purpose of MAC forwarding (data layer).Network adapter for LinuxBridging in VMware WorkstationReference:

There are generally three types of partitioning: data is not very important/boot (System boot partition): System-led information/software system kernel 200MSwap (Swap partition): System downtime to avoid system memory runs outIf the system memory is

1. Installation:Method one: Direct with the command yum-y install FioMethod Two: If the method is not OK, on the official website http://freshmeat.net/projects/fio/Download FIO installation package. The installation method is simple. After

Putty Links:https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html Xshell Link: https://pan.baidu.com/s/1jICI3Ka Password: tlwn1.9 Putty Password Authentication methodOpen Putty,windows-lines of ScrollBar support screen scroll up and down

Specific steps:1.? Insert the installation disc and mount it, then install the bind package and the associated package. :2.? Edit the master configuration file . Master profile Named.conf is usually located in /etc/ directory, if you have

C programs under Linux often cause segment fault (segment error) due to memory access, and if the function of core dump is open, a file called core will be generated when running our executable program. We can then use GDB to tune the core file to

, enter command: Apt-get install git prompt permission is not enoughWorkaround, add sudo before the commandsudo apt-get install gitsudo is a Linux system Management Directive, a tool that allows the system administrator to let ordinary users perform

first, the common command introductionCommon commands can be consulted: http://man.linuxde.net/　　Common shortcut keys : http://blog.csdn.net/avilifans/article/details/11847371Tab: Click Complete, double-click List all ↑↓: History command Flip Ctrl+C:

We know that the most basic responsibility of the OPS engineer (Operations) is to be responsible for the stability of the service and to ensure the high availability of the entire service, while continuously optimizing the system architecture,

To open the Terminal method:1. Shortcut key ALT+F2 Open the running window, enter gnome-terminal in it, return2. Desktop or directory blank section right: click Open in Terminal3. Use the shortcut key on the active terminal: Ctrl+shift+nUse terminal

One, the load of the executable program 1. preprocessing, compiling, linkinggcc –e –o hello.cpp hello.c //预处理gcc -x cpp-output -S -o hello.s hello.cpp //编译 gcc -x assembler -c hello.s -o hello.o-m32 //汇编gcc -o hello hello.o

Linux Mint automatically mounts Windows D-and E-drivesAfter the terminal knocks Udisksctl mount-p BLOCK_DEVICES/SDA, double-click the TAB key to complete the partition as follows:If my e-disk is Sda6, executeudisksctl mount-p BLOCK_DEVICES/SDA6You

Resolve network packet loss problems in linuxRecently, I encountered problems in my business. I found that the value of overruns is constantly increasing. I learned some related knowledge.It is found that the number is constantly increasing. G, I