IntroductionGzip is a compressed file command that comes with Linux, and its compression ratio is approximately 60% to 70%, which is higher than zip compression. Using gzip compression By default adds a. gz suffix to the file and deletes the source
Linux New user switch shows-bash-4.1$When the newly created user switches, it appears:-bash-4.1$Reason: I looked for a bit on the internet and said it was missing some configuration filesSpecific solutions:Cp-a/etc/skel/. /var/zabbix; -a means that
Original:Linux system startup processPOST (Power On Self test/)-->bootloader (MBR)-->kernel (Hardware probe, load driver, mount root file system,/sbin/init)-->init (/etc/ Inittab: Set default level, System init script, start and close the
Table of Contents: 1, Boot bootloader Summary2, the installation and configuration of Lilo3. Installation and configuration of grub4. Switch between two boot programs5. Attached: Lilo settings when compiling the kernel
1. Start Boot Program
http://chenzhou123520.iteye.com/blog/1933489http://chenzhou123520.iteye.com/blog/1925209Recently installed on the company server memcached a lot of times, every time you have to go online to check the steps, today simply write a detailed step to
Concept One: Linux-ext2 file systemExt2 is partitioned into multiple blocks (block group) and a boot sector (boot sector), with Superblock, File system Description, block bitmap, INode in each block Bitmap, INode table, data block six parts.Boot
To invoke a job or conversion in the repository using kettle, you need to be aware of two issues:Issue One: (no IP required after-rep) standard shell code is as follows#!/bin/bashexport
1. CD commandThis is a very basic, is also a common need to use the command, it is used to switch the current directory, its parameters are to switch to the path of the directory, can be an absolute path, can also be a relative path. Such
Original:ObjectiveThis section uses basic Linux basic functions plus epoll calls to write a complete server and client example that can be run on Linux, and the functions of the client and service side are as follows:The client reads a line from the
A. What is a pipe?Piping, as the name implies, is a pipe, which can flow through a lot of things. Give me a chestnut ls | Morels output lists the file directory through the ' | ' This pipeline flows to more of this text browser. We can also use LS >
Linux usually uses Whereis or locate to check files, and if you can't find them, use Find. Why is find not a priority command?Because Whereis and locate are using the database to find data, it is quite fast and does not actually query the hard disk,
Let's start by talking about the general purpose of interprocess communication (IPC), such as data transfer, shared data, notification events, resource sharing, and process control. But we know that for each process the process sees a piece of
The Linux Foundation released the 2016 Linux kernel Development Report, which coincided with the 25 anniversary of the Linux kernel (Tengyun technology ty300.com), so it is worth reading more than previous years for more retrospective content.Linux
What to learn in this chapter------Process Concepts------process creation, switchover, and revocation------Process Scheduling------Process Classification------Process Status------Process Management ToolsIntroductionIn the Linux system, the function
Installation Environmentmemcached version:1.4.31System Environment: CentOS 6.8 because Linux systems are memcached dependent on libevent-dev, so install Libevent-dev First . Libevent-devConnected Network installation:
Debian/ubuntu:
suggeted reading:1. Man smb.conf2. Man smbpasswdSteps:Do the following commandssudo apt-get install SambaCd/etc/sambaSUDP CP smb.conf Smb.conf.baksudo vim/etc/smb.confIn the file smb.conf, find sections [homes], uncomment and modify the related
Under the command line with the java-xmxxxxxm-version command to test, and then gradually increase the value of XXXX, if performed normally indicates that the specified memory size is available, otherwise the error message will be printed.found that
Linux special symbols
Linux special characters
We often follow the special symbols on the keyboard, such (? ,! ,~...) In fact, it has a unique meaning in Linux, which can be roughly divided into three categories: Linux special symbols, wildcards,
Linux gzip, gunzip, and linuxgzipgunzipIntroduction
Gzip is a linux built-in compressed file command. Its compression ratio is about 60%-70%, which is higher than that of zip. Use gzipzip to add the. GZ suffix after the file and delete the source
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