Linux

Linux installation oracle11g0, download orcle11gHttp://www.cnblogs.com/mmzs/p/9030823.html1. Upload files to the/install directory of the server or virtual machine[Email protected] install]# rz–yIf the Rz–y command is not available, it can be

Reason Lookup:There is a write log operation on this server, and I delete the file to be written at the same time. Because the block of the hard disk is written when the write does not create the file, it makes the drive less efficient and can be

/proc Directory/proc directory:The Linux kernel provides a mechanism for accessing kernel internal data structures and changing kernel settings at run time through the/proc file system. The proc file system is a pseudo-file system that only exists

Systemd? POST--Boot Sequence--Bootloader-kernel + INITRAMFS (INITRD)--Rootfs-/sbin/initInit:centos 5:SYSV InitCentOS 6:upstartCentOS 7:SYSTEMDSYSTEMD: System startup and Server Daemon Manager, responsible for activating system resources, server

Java-version View JDK versionPs-ef |grep XXX: Show the process containing XXXPS: Show a processgrep: Finding|: For pipeline command, indicates that PS and grep are executed togetherRpm-qa | grep java: detecting JDK installation packagesRPM: Check

SED: The second of the Three MusketeersImplement add to file delete Modify query filterCommand format: SED option sed built-in command file-I.-E-NAIDPSGCreate a file Tobedu.txt, enter the content, and take this file as an example.[Email protected] ~]

Path path simple to understand[[email protected] kang]# vi yyecho YY[[email protected] kang]# chmod +x yy[[email protected] kang]# ./yyYY[[email protected] kang]# pwd/root/kang目的修改PATH路径，让用户在任何目录下输入yy都可执行[[email protected] kang]#

1. See which users have/bin/bash permissionscat/etc/passwd2. Check if common commands have been tampered with(1) Find the path to the command file (Whereis and which)whereis netstatwhich netstatwhich netstat/bin/netstatwhereis netstatnetstat:

What is a regular expression? Regular expressions are a grammatical rule that describes the pattern of character arrangement and matching. It is used primarily for pattern segmentation, matching, finding, and substitution of strings.

15.4 Xshell using XFTP to transfer filesCtrl+alt+f15.5 using PURE-FTPD to build FTP serviceYum Install-y epel-releaseYum Install-y pure-ftpdvim/etc/pure-ftpd/pure-ftpd.conf//Find pureftpd.pdb This line, the beginning of the # DeleteSystemctl Stop

System startup BriefThe Linux operating system starts first from the BIOS, then into boot loader, which is loaded into the kernel by bootloader for kernel initialization. The last step in kernel initialization is to start the init process with PID 1.

Liunx three major distributions: including Redhat, Slackware, Debian1, Redhat Branch:1.1, Redhat Enterprise Liunx (Corporate Edition),1.1.1, CentOS for the Redhat Enterprise Liunx two-time release1.2. Fedora Core2, Slackware Branch:2.1, S.U.S.E2.1.1,

First, the need to shut down the Linux firewall (after the restart to take effect)Chkconfig iptables offSecond, download the Linux appropriate version of Tomcat from the official website, I am now down the file for apache-tomcat-8.5.30.tar.gzIii.

First cd/etc/yum.repos.d/Put all the files inside a new folder,When you create a file that is named Yum.repoVI Yum.repo[Yum]Name=yumBaseurl=file:///mnt------------where the image file is mountedEnable=1Gpgcheck=0Then Wq Save exit·View all available

Last episode speaking of NFS server configuration, this article begins with client operations.1 NFS Client MountYum Install-y nfs-utilsshowmount -e 192.168.226.129This IP is an NFS server-side IPmount -t nfs 192.168.226.129:/home/nfstestdir

14.4 Exportfs Command#exportfs-arv//re-mount#vim/etc/exports/TMP/192.168.133.0/24 (Rw,sync,no_root_squash)14.5 NFS Client Issues#mount-T Nfs-o nfsvers=3 192.168133.130:/tmp//mnt/specified version 3, re-mount#mount-T nfs-oremount,nfsvers=3 192.168133.

通配符Attention:The 1.linux wildcard is different from The Three Musketeers (grep, SED, awk) Regular expressions, therefore, the meaning of the representative is also a big difference2. Wildcard characters are typically user command-line bash

Signal processing is an event that UNIX and Linux systems generate in response to certain conditions, usually the kernel generates a signal, and the process receives a signal and takes action accordingly.For example, when we want to force the end of

Index:Open Source Spring Solution--lm.solutionSee Code GitHub:Rabbitmq.txtOne, Linux (deepinos) environment1 1. Installation:2 sudoAptInstallrabbitmq-Server3 2. Go to catalogue--/usr/lib/rabbitmq/lib/rabbitmq_server-3.6.Ten/sbin:4 enter command to

One, Windows, Linux virtual machines, Docker diagramsIf the Pingdocker container is ping different at this time because there is no route to the 172.17.0.0/24 network on the host, the host has the opportunity to send the data destined for the 172.17.