How to use GDB debugging under Linux

GDB is a very useful debugging tool under Linux, although it is a command-line mode debugging tool, but it is powerful enough to you can not imagine, here is a brief introduction to GDB under common commands.Start by compiling the executable file

One Linux command per day: gzip command

The compression command has two obvious advantages: one is to reduce the storage space, and the other is to reduce the transmission time when transmitting over the network.According to statistics, the gzip command has a compression rate of 60%-70%

"Research mission" Linux system boot-up process

General overview Load BIOS A special one should generate a reset logic value on one pin of the CPU, and then set some registers (including CS and EIP) to a fixed value Then execute the code found at the physical address of 0xFFFF

Linux Account Management Chapter II: Management of user groups

1. Viewing the user's effective group    Groups user NameNote: There may be multiple results from the view; The first is the primary group, followed by the sub-group  2. Adding and removing groupsAdding a group: Groupadd Group nameDelete a group:

Phase IV 11_linux NFS Linux file sharing

Samba, FTP, NFS comparison  The common feature of Samba, FTP, and NFS is that you can share file information on your network. * Samba is used primarily for file sharing between Windows and Linux systems in a local area network* FTP is mainly used

Linux tips: Several ways to keep processes running reliably in the background

We often encounter such problems, log on to the remote Linux server with TELNET/SSH, run some long-time tasks, the result of the network instability caused by the task Midway failure. How do i make the command submit without being disturbed by the

Installation of Linux Nginx

Nginx Installation? 1. Installation Dependent environment–yum-y install gcc automake autoconf libtool make–yum-y install gcc gcc-c++ pcre-devel OpenSSL openssl-devel? 2, install Pcre, Zlib, the former in order to rewrite rewrite, the latter in order

Self-study Linux Shell7.1-linux user accounts and groups

Click Back to learn the path of the Linux command line and shell script7.1-linux user accounts and groupsThe core of the Linux security system is the user account.Each user who can access the Linux system is assigned a unique user account, and the

Deployment of Zen Road environment in Linux environment

Download Zen Road installation package:1) cd/home/2) mkdir App3) LS4) CD app/5) PWD6) Wget + Zen Road Address (http://dl.cnezsoft.com/zentao/9.8.3/ZenTaoPMS.9.8.3.int.zbox_64.tar.gz)7) Yum Install wget-installs wget wget is primarily responsible for

Linux Basic Command 2

1, modify the network status:1), cd/etc/sysconfig/network-scripts/network-scripts2), vi ifcfg-eth0 Editor Onboot=yes;3), Save exit4), service network Restart--Restart networkWhen the network restart fails, select the name of the virtual device

Linux disk Mount

The Mount command is used to load the file system to the specified mount point. The most common use of this command is to mount the CDROM so that we can access the data in the CDROM because you insert the disc into the CDROM, Linux does not mount

Commands for checking memory usage in Linux

The Linux operating system contains a number of tools, all of which can help you manage your system. From simple file and directory tools to very complex security commands, there's not much that you can't do on Linux. Also, while normal desktop

Disable root direct login to Linux system

Modify files directly# Vim/etc/ssh/sshd_configSyslogfacility authprivpermitrootlogin norsaauthentication yespubkeyauthentication Yesauthorizedkeysfile.ssh/authorized_keyspasswordauthentication nochallengeresponseauthentication Nogssapiauthentication

Linux manually configure IP address methods

Manually configure a static IP addressThat is, manually configuring IP addresses, subnet masks, gateways, and DNS.The Setup method is as follows:vi /etc/sysconfig/network-scripts/ifcfg-eth0编辑本地网卡的配置文件See whether the following are the same as given

Linux Common commands

Tag: INF data read file glib Port Sync map Anaconda Operating systemLinux Common commandsIn Linux, most commands refer to the command option parameterOptions: Applies to the ability to adjust commandsParameter: Refers to the operand of the command,

Linux Common Commands--uname

uname 查找目录下的文件Syntax format: uname "option" uname [options]Note: There must be at least one space between each element in the uname command and in the options and options that follow.Option Description: parameter Options

DHCP failover related under Linux

Background: Corporate DHCP server for security, generally at least 2 DHCP server, 1 fault another can work properly. However, 2 DHCP server How to assign the address is a problem, under normal circumstances, DHCP server receives a DHCP request, will

Git Base for Linux

GitHub Combat Series Summary: Http://www.cnblogs.com/dunitian/p/5038719.htmlabbreviation code: Https://www.cnblogs.com/dotnetcrazy/p/9162115.html#codeLinux install git, make a record ( use the privacy mailbox provided by GitHub ) # git official

Use SSH to keep session links in Linux and log in automatically

After the Linux terminal login to the server, a new terminal, login again, still need to enter the password, SECURECRT has session clone function, do not have to enter the password again. Linux SSH settings can also be used to achieve similar

Linux Add pythonpath environment variable

1. Add environment variables to PythonpathExport pythonpath= $PYTHONPATH:/home/myprojectView PythonpathEcho $PYTHONPATHYou can enter the Python interpreter and print the Sys.path proof to take effect.After adding an environment variable, this is

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