Linux

We know that there are two very powerful tools winrar and compression tools available in Windows, and there is a powerful decompression and compression tool in Linux as well. That's the famous tar. Let's first look at the format of the tar command

Files need to be processed and analyzed in the project, first need to find the file according to requirements, such as the last modified fileCode implementation:1#include 2#include 3#include 4 5#include 6 7 using namespacestd;8 9 intMainintargcChar**

In the work, we often need to modify the contents of all the files under a folder, for example, to replace the date in a new date, or a string of characters replaced by another string of characters, then we can use the SED command:Sed-i "s/oldstring/

Linux kernel-system call1. Communicating with the kernel#系统调用在用户空间进程和硬件设备之间增加了一个中间层Functions: 1. Provides a hardware abstraction interface for user space2. System call to ensure the stability and security of the system3. Considerations for each

1. The file name is preceded by a ".", which means " hidden file ".2.chgrp: Change the user group to which the file belongschown: Changing the file ownerchmod: Change the permissions of the file//r=4,w=2 x=1;3. File default permissions:umasK;umask's

Linux Tour (1): diff, Patch and quilt (bottom) 2 quiltOur own projects can manage all the code with CVS or SVN. But sometimes we use projects that other developers maintain. We need to change some files, but we cannot submit the code directly to the

Linux boot process1. Start process (bios->mbr:boot code-> boot grub-> load kernel, execute init->runlevel)2,/boot/grub/There are multiple files where stage1 is MBR mirroring (512 bytes) Stage2 as the bootloader3./boot/grub/grub.conf as the boot

1, private data for the thread:Click to open linkThe reason for the thread to have private data: 1, sometimes need to maintain data based on each thread, 2, to adapt the process-based interface to multi-threaded environment,How thread-private data

Software Environment: Ubuntu 13.10Hardware environment: TQ2440 Development BoardBecause my PC operating system is win8.1, somehow not installed in the sky embedded USB download driver, so in PC burning write Development Board system and bare-metal

*************************************************************************************************************** ***********************Reprint: http://blog.codingnow.com/2006/11/windows_unix_dynamic_library.htmlRecently, slowly turned the

Unable to mount a NTFS partition after replace Windows after Linux install? Unable to mount a NTFS partition after replace Windows after Linux install?Today, I replaced Win7 with Win8.1, the outcome of this action are that the grubfails, and I had

Linux Startup Process notes, linux Startup notesLinux Startup Process 1. Startup Process (BIOS-> MBR: Boot Code-> Boot GRUB-> load kernel-> execute init-> runlevel)2. There are multiple files under/boot/grub/. stage1 is an MBR image (512 bytes) and

The relationship between LD_LIBRARY_PATH and-L, ld_library_path-l LD_LIBRARY_PATH is an environment variable, which is used to let the dynamic link library loader (ld. so) there is an additional option at runtime (run-time) to add a search path list.

Determine whether a software has been installed in CentOS My system is centos6.5I run the command rpm to check whether a software is installed (such as matlab and fluent). The following results are obtained:I use rpm-qa (| grep) matlab and press

Enable sudo in CentOS and disable root remote logon. By default, CentOS does not enable sudo and can directly log on to the server as a super administrator. Ubuntu is better in this aspect. To ensure security and reduce the loss caused by

Install and configure VNCServer and VNCClint in centosI. VNC VNC (Virtual Network Computer) refers to a Virtual Network Computer. VNC is an excellent remote control tool software with powerful remote control capabilities and high efficiency and

Linux Process Real-time Monitoring-htop, linux real-time monitoring-htop For linux Process Management, top commands are commonly used, but the results displayed by top commands are not intuitive and difficult to find information. In addition to top

File permissions in linux In linux, we found that the linux system has stricter file permission management than windows. Create a new group in linux: groupadd group name New linux User: useradd User Name Create and group users: useradd-g group

Install adobereader on centos Download the adobereader installation package at the following address Ftp://ftp.adobe.com/pub/adobe/reader/unix/9.x/ Download the. rpm package Download Chinese package FontPack81_chs_i486-linux.tar.gz

Manage icons in the centos6.5 Application Previously, yongzhong office was uninstalled when it felt bad. Later, it was found that there were still some residual files in it. The address is as follows: /Usr/local/Yozosoft/Yozo_office /Etc/Yozosoft