In Windows, the ultimate types of compression are. rarand. zip, but there are many comparisons in linux, such as. tar;. Zip;. GZ; .tar.gz;. bz2. Before introducing compressed files, we should first understand two concepts: Packaging and compression.
For many Linux enthusiasts who are interested in the kernel, this article aims to introduce an entry method for interpreting the Linux kernel source code, rather than explaining the complex Linux Kernel Mechanism. (Reference Source: feiling
First use of Linux
Due to the need to completely learn Oracle, I began to learn Linux, and people around the Internet are talking about how to do Linux well!
However, after a period of learning and using, it is difficult for me to use
Alan Cox, a Linux kernel maintainer, recently disclosed the story of working with Linux founder Linus Torvalds. He said that towoz is an excellent
ProgramBut he is indeed a bad engineer.
Cox disclosed in his speech at the European Conference of
In a running system, you have changed some directories that previously existed in the PATH environment variable. Program No such file or directory error message may appear after the directory is stored.For example, if python was previously stored in/
Summary of VI usage
The most powerful Editor-vi
VI is a screen editor provided by all UNIX systems. It provides a Windows device that allows you to edit files. Of course, people who know a little about UNIX systems may feel that VI is super
PID: process ID.
The kernel assigns a unique ID number to each process. a pid is required for commands and system calls of many operation processes to identify the operation objects. The PID is generated in the order in which the process is
1. Kill a process with a specific keyword:
PS-Ef | grep lxs | grep-ev grep | awk '{print $2}' | xargs-t-I kill-9 {}
Or:
Kill-9 $ (PS-Ef | grep lxs | grep-ev grep | awk '{print $2 }')
Change the keyword httpd to the keyword that you need to
In the past year, Microsoft's Windows 7 has become popular, but Linux systems have become increasingly popular. Do you know about Linux systems? Are you an application of Linux? This article describes Linux scheduled tasks in detail and plays a
Type \
Echo unset set Export
Environment variable: Home shell histsize mail path Lang random PS1 $?
Language variable that affects the result: locale
Variable keyboard reading, array and Declaration: Read array declare
And file systems
Linux kernel-level File Access
Author: baiyuanfan (baiyuanfan@163.com)
Date: 2.1, 2006
1. BackgroundOn WindowsProgramAPI functions are usually used to access, create, open, and read/write files. From the createfile/readfile/writefile function of
The format of the SED command line is as follows:[Root @ localhost ~] # Sed [-nefri] command input text
Common options:-N: Use silent mode. In general sed usage, all information from stdin is usually listed on the screen. However, if the-n
Unset LanguageExport lang = "en"CD/home/KingsoftMkdir DistCCCD DistCC
RPM package: rpm-IVH...Bz2 package: tar-xvf...Go to the directory after DistCC Decompression./Configure & make
Linux uses a combination of letters and numbers to identify hard disk partitions. The details are as follows:Device Type of the first two letter partitionsHD: IDE Hard DriveSD: SCSI hard disk
The device on which the third letter is partitionedHda:
VI has three working modes: Command mode, insert mode, and edit mode.
Enter the command: vi + file name to start VI. The default mode is command mode.
Enter I to enter the insert mode, and Press ESC to return to the command mode.
Command 1: Which
The "which command" can only find the directory where the command is located.
Example: Which ls
Command 2: whereis
"Whereis command" to find and only find the directory where the command is located + the location of the help
LoadRunner monitors Linux
The rstat protocol allows users on the network to obtain the performance parameters of each machine on the same network.
Three packages need to be downloaded:(1) rsh-0.17-14.i386.rpm(2) rsh-server-0.17-14.i386.rpm(3366rpc.
I. Prerequisites
1. Input Subsystem ):
In Linux, the Input subsystem consists of the device driver layer, Input Core, and Event Handler layer of the Input subsystem. The device driver layer provides read/write access to the hardware registers and
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