reading of Linux compressed files
· *. Z Compress program compressed file;
· *.BZ2 bzip2 program compressed files;
· *.GZ gzip program compressed file;
· The data packaged by the *.tar tar program has not been compressed;
· *.tar.gz The TAR
Enter in the terminal: sudo gedit/boot/grub/grub.cfg
Install Windows and then install Linux system, the default startup item will be very many, after executing the above command, will open a document, the following code:
-----------------------------
1 command format:
$ find
Most common example: Find file name (Ignore case)
$find. -iname Sqlquery.java
1.1
The directory to search for and all of its subdirectories. The current directory is assumed by default. Find default recursion
1. Basic Concepts
1.1 Address
(1) Logical address: the part of the offset address that is generated by the program in relation to the segment. In the C language pointer, read the value of the pointer variable itself (& operation), which is actually
A user, a groupLet's take a look at Linux permissions and ownership models. We've seen each file belong to a user and a group. This is the core of the permissions model in Linux. You can view users and groups in the Ls-l list:
$ ls-l/bin/bash
-rwxr-
This article is based on the Liu Yan teacher's "Linux should be so learned" in personal easy to forget the reading notes, combined with personal weaknesses, may not be suitable for the vast number of netizens classmate, and hereby declare this
from:http://blog.163.com/ninja_wk/blog/static/989155620073584237317/
Build your own Linux distribution on a USB disk
Objective
I've always wanted to be a Linux drive that starts and runs on a U disk. Recently spent some kung fu, initially made a
1. DLNA's DMR programme
Scheme 1:MEDIAGATEFORCC (Http://www.cybergarage.org/twiki/bin/view/Main/MediaGateForCC), based on GStreamer implementation player
CyberLink protocol stack needs to rely on XML libraries, can choose Xerces and LIBXML2,
Linux euis1 2.6.9-55.elsmp #1 SMP Fri Apr 17:03:35 EDT 2007 i686 i686 i386
(view current operating system kernel information)
# Cat/etc/issue | grep Linux
Red Hat Enterprise Linux as Release 4 (Nahant Update 5)
(View current operating system release
This article describes how to use the Linux Environment ( Redhat9 , for example) through Subversion to build the most important version control environment in the team development process, including Subversion The installation configuration of the
Linux Network1, optimize the network device receive queuenet.core.netdev_max_backlog=3000This file represents the maximum number of packets that are allowed to be sent to the queue at a rate that each network interface receives packets at a faster
Linux command: Hdparm
Function Description: Display and set the parameters of the hard disk.Syntax: hdparm [-cfghiiqttvyyz][-a ][-a ][-c][-d ][-k ][-k ][-m & lt; partition number >][-n ][-p][-p ][-r ][-s ][-u ][-w ][-x ][equipment]Supplemental Note:
Reading of Linux Compressed files
· *. Z Compress program compressed file;
· *.BZ2 bzip2 program compressed files;
· *.GZ gzip program compressed file;
· The data packaged by the *.tar tar program has not been compressed;
· *.tar.gz The TAR
We know that SPI data transfer can be in two ways: synchronous and asynchronous. The so-called synchronization means that the initiator of the data transmission must wait for the end of this transmission, can not do other things, in code to explain
Write your own program when encountered this problem many times, most are pointers do not dynamically allocate space directly using subscript caused.
Like what:
Char *s;
cin>>s;
int Len=strlen (s);
for (int i=0;i
I've had this mistake a few times,
4K Alignment Introduction: Click to view the method: First, fdisk command:
Command: sudo fdisk-lu
As the sector at start of the previous figure is divisible by 8, the 4k alignment is represented. SDA4 is that the extended partition is not
Quietly enter the Linux kernel debugging (i)
This article base address: Http://blog.csdn.net/cugxueyu/archive/2007/12/21/1957740.aspx※Debugging work hardis a significant feature of kernel-level development, which differs from user-level development.
Driver/usb/core/hub.c:usb->hun_thread ()->hub->events ()->hub_port_connect_change () driver/usb/core/ HUB.C Hub_port_connect_change ()//detection of new device Connections Usb_new_device (UDEV)//Registration of new equipment usb_get_configuration
Overview
SVN backup generally has 3 kinds of ways: Svnadmin dump, Svnadmin hotcopy, Svnsync, this paper uses a full backup, that is, the use of svnadmin hotcopy of the way to backup. In view of the possibility of hard disk damage and the need for
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