Linux

Frequent copying/moving of a large number of files from remote or local servers is required in daily work. When you encounter a file comparison is more slow, so you want to have a faster way. After collecting, sorting, verifying, there are probably

SYS/TYPES.H: Data type definitionSys/socket.h: Provides socket functions and data structuresNetinet/in.h: Defining Data Structures sockaddr_inArpa/inet.h: provides IP address translation functionsNetdb.h: Provides functions for setting and

has been learning Linux for 3 months, I have a little feeling.First layer: Learn what Linux is and what you can doSecond tier: Linux Basics revolves around shell scripting and the configuration of a variety of services (people who have studied the

Internal command: Help commandExternal command: Command--helpCommand manual: ManMan Sub-chapterEg:man 1 command1: User command (/bin,/usr/bin,/usr/local/bin)2: System call3: Library User4: Featured file (device file)5: File Format (configuration

Linux commands (2) manMan is a common help command under Linux.?If it is easy to install, you need yum a man pack before you can use the Man command#yum Install Man-y?man-Display the online Help Manual (Manualpage) manpath-determine the search path

First, the relationship between boot sector and Super BLOCK:1. Boot sector is used to store the boot loader, which occupies 1024 bytes.2, super block size is also 1024 bytes.3, if the block size is 1k, then the boot sector and Super block each

This article only serves as a trap.One, view the disk and directory capacity: DF duDF: Lists the overall disk usage for the file system.Du: Evaluating the disk usage of the file system (commonly used to estimate the capacity of the catalog)Ii.

The disk partition uses the FDISK command, which only has permission to use root.General steps for disk partitioning:1, first use the DF command to view the device nameDf-h;2, FDISK/DEV/SDA; D: Delete a partitionN: Create a partition P: Print

After the partition is complete, the disk is formatted to generate the file system.Command format: MKFS [-T file system format] device file name Example: Mkfs-t Ext3/dev/sda6;　　The lack of the above command is not able to specify the volume label of

The split command of Linux is a good choice when faced with slicing a large file. It contains a number of parameters that support slicing by row and size.The syntax for the split command is as follows:Split [--help][--version][-a][-b][-c][-l] [file

Note:1, the Linux Shell cannot be complete by pressing the TAB keyfound that the use of new users login, in the shell can not use the TAB key to complete the command, press the up and down keys can not switch historical commands, garbled phenomenon,

1. SSH No password login between cluster nodesReference: http://www.cnblogs.com/jdksummer/articles/2521550.htmlSolve:1) Delete old records: Rm-r ~/.ssh2) Create a new login password:CdSSH-KEYGEN-T RSAAnd then I'll just push it all the way.After the

(This article from: http://www.cnblogs.com/wangkangluo1/archive/2012/06/06/2537677.html)Linux under the default is not to produce core files, to use Ulimit-c unlimited releaseOverviewSystem performance has always been a topic of concern, how to

1. IfconfigIfconfig is mainly able to manually start, observe and modify the parameters of the network interface, can modify the parameters are very many, including IP parameters and MTU can be modified, his syntax is as follows:[[email protected] ~]

The Chkconfig command is primarily used to update (start or stop) and query run-level information for system services. Keep in mind that Chkconfig does not immediately automatically disable or activate a service, it simply changes the symbolic

Use VirtualBox in Ubuntu to install MacOSXMavericks (10.9) This article describes how to install Mac OS X Mavericks in Ubuntu. The details are as follows: 1) preparations before installation Download Mac OS X Mavericks at

CentOS kernel upgrade tutorials Current Environment:12 [root @ localhost ~] # Uname-r2.6.18-348.el5 Configuration process: 1. Prepare the yum library to install g ++ gcc[Root @ localhost ~] # Cat/etc/yum. repos. d/rh_5.9.repo [rhel-server] name =

You can view several methods of memory usage by a process. 1. pmap-x pid 2. ps-aux | grep process name Ps-e-o 'pid, comm, args, pcpu, rsz, vsz, stime, user, uid' | grep process name 3. top-d 1-p pid 4. cat/proc/[pid]/status How can I check the

[Linux & amp; Unix -- open/close/write/read System Call] If you have any shortcomings, please kindly advise. Reprinted Please note: @ CSU-Max Series of blog posts: Linux and Unix -- file descriptors and permissions Second play in Linux & Unix

Build a separate LAMP server platform under CentOS LAMP platform planning HOST 1: httpd + php IP Address: 10.170.2.60, install httpd-2.4.9 and php-5.4.26 Host 2: mariadb IP Address: 10.170.2.50, mariadb-5.5.36 Installation Configure HOST 1 Compile