Linux

tar command [Root@linux ~]# tar [-cxtzjvfppn] files and directories .... Parameters: -C: Create a compressed file parameter instruction (create meaning); -x: Unlock a parameter command for a compressed file! -T: View the files inside the Tarfile! In

In the 70 's, the UNIX system's source program can be freely circulated. The Internet's underlying protocol TCP/IP was created in that era. At that time, people in the creation of their own "program works" enjoy the scientific exploration,

The Mysqlcheck client tool can examine and fix myisam tables, and can also optimize and analyze tables. In fact, it integrates the functions of check, repair, analyze, optimize in MySQL tools, There are 3 different ways to invoke Mysqlcheck:

First, create a directory habit ~ $ mkdir tmp ~ $ cd tmp ~/TMP $ mkdir a ~/tmp $ CD a ~/tmp/a $ mkdir b ~/tmp/a $ cd b ~/tmp/a/b/ $ mkdir C ~/tmp/a/b/$ cd C Should use: Second, the habit of extracting files

Transparent Big Page Introduction Some official presentations from transparent Huge pages: Transparent Huge Pages (THP) are enabled by default in RHEL 6 for all applications. The kernel attempts to allocate hugepages whenever possible and any

Linux using md5sum recursively to generate the entire directory MD5 today to use the md5sum operation directory, recursive generation of all the files in the directory MD5 value, the results found that it does not support recursive operations and

Introduction: This article uses Linux's Kylix 3 and Borland dbexpress data access drivers to analyze DB2 UDB database tables, fields (names, and types), allowing users to select specific tables, toggle between fields to be displayed, and view data

The informixseforlinux of this article is the compiled version: Installation steps are as follows Server environment: TurboLinux4.0 Chinese version, Kernel2.2.10,64m,pentium90 take SE as an example, ESQL/C is SQL embedded C development tools,

The monitoring side of the work has been done, now as long as the monitoring side of the operation; Note: be monitored MySQL remember to set the password AH The addition of service types is also 2: 1.web Server 2.mysql Server The following is a

The boot process refers to the whole process of powering up the computer until Linux displays the user's login screen. Analyzing the Linux boot process is also a great way to get a good idea of how Linux works. Start the first step-load the BIOS

The Linux file system is an inverted tree structure, all files or folders are contained in a root directory "/". Linux systems are strictly case-sensitive and have a name of up to 255 characters All valid characters except forward slash Each

First, the Linux Firewall Foundation Firewalls are divided into hardware firewalls and software firewalls. 1. Overview Linux firewall system mainly works in the network layer, for TCP/IP packet implementation of filtering and restrictions, belong

Cd.. Return to the previous layer;PWD view current directory;Ssh-l Oracle oracle_id into the databasePs-ef|grep Oracle View current Oracle ProcessesSqlplus/nolog into SqlplusUse $,sql under Linux! (seems to be so, to be verified later) expExported

51CTO Learning notes--Linux operation troubleshooting ideas and system tuning tips video Lessons650) this.width=650; "src=" Https://s1.51cto.com/images/201611/25208e84076a9820fec7594656b44c32427a85.png "alt=" 25208E84076A9820FEC7594656B44C32427A85.P

########################################################### #第十单元 #######################################################################1.RSYSLOGD Service (SYSLOGD enhanced version)RSYSLOGD service function is used to manage system logsFunction:1)

DF -H/du -hs./dugrep [[:d igit:]+]gdu [-ABCDHHKLMSSX] [-l ][-x ][--block-size][--exclude=][--help][--version][directory or file]Common parameters:-A or-all displays disk usage for each specified file, or displays the respective disk usage for each

Remote Desktop of VNC under the same LAN in CentosI. VNC software For example, Centos is controlled by Windows:Install VNC on Centos // Check whether installation # rpm-q tigervnc-server // installation # yum install tigervnc-server // create a user

How to check whether the Apache module is normal In this article, we will briefly discuss the Apache server front-end and how to list or view the Enabled Apache modules. Apache is built based on the modular concept. This allows the web administrator

How to build new application-oriented O & M management ideasGuideO & M requires breakthroughs in thinking, from Ops to DevOps, from projects to products, from resources to applications. Many problems have been plagued and are being considered. Why

Java SE users are careful!Is Java free? You think too much. Oracle's lawyers are on their way. Six years after the acquisition of Sun Microsystems, Oracle finally began to audit Java customers with great fanfare. More and more Oracle customers and