Linux

  # The BBB, CCC, and BNR subdirectories exist in the current tree directory. Now, you need to filter out the dump file of gz, that is, you do not need to package [oracle @ linux1 ~]. $ Tree AAAAAA | -- BBB | '-- SYTST_temp.dbf | -- BNR | -- dump |

/Bin: stores the most common executable files in the system. /Boot: stores Linux kernel and system startup files, including Grub and lilo boot programs. /Dev: stores all device files, including hard disk, partition, mouse, USB, tty /Etc: stores all

1. System guiding process Step 1: firmware fireware (CMOS/BIOS) -- POST some self-check (not related to the operating system) This step mainly checks whether hard disks and other hardware work properly. CMOS: is solidified on the motherboard,

Just as a thread has attributes, its synchronization objects (such as mutex, read/write locks, condition variables, spin locks, and barrier) also have attributes. Bytes.1. mutex attributes Use pthread_mutexattr_init to initialize the

Linux system services run on daemon. They are mainly divided into two categories: 1) standalone: You can start services independently, such as httpd and vsftpd. It features fast response, but high resource usage. 2) super daemon: A special unified

In. POSIX.1 requires system to ignore SIGINT and SIGQUIT and block SIGCHLD. Instance Use the systemscripts in http://www.cnblogs.com/nufangrensheng/p/3512291.html to use the ed (1) Editor. (Ed has been a UNIX component for a long time. The reason

The sigaction function is used to check or modify the processing actions associated with the specified signal.(Or execute these two operations at the same time ). #include sigaction( signo, sigaction *restrict act, sigaction *- The signo

In the signal processing program, the longjmp function is often called to return to the main loop of the program, rather than from the handler. However, there is a problem with calling longjmp.When a signal is captured, the system enters the signal

When we execute commands (such as tar) in Linux Bash, they are all performed on the foreground by default, that is, we must wait until the command ends before executing Subsequent commands. In fact, we can control command execution in the background,

Ext2 file system the regular file system in Linux is Ext2 (Linux second extended file system), which consists of the following three parts: 1) super block: records the overall information of this file system, includes the total inode/block quantity,

I just saw a series of blog posts about commands that are rarely used but are very useful at ordinary times. I chose some of the commands that I think should be used to write notes. Some of these commands are not system commands. You need to

Installation instructions System Environment: CentOS-6.3Software: nginx-1.2.6.tar.gzInstallation Method: source code compilation and InstallationInstallation path:/usr/local/nginx: Http://nginx.org/en/download.htmlPrerequisites Before installing

The iso c standard I/O Library provides two functions to help create temporary files. #include *tmpnam( **tmpfile( If ptr is NULL, the generated path name is stored in a static zone, and the pointer pointing to the static zone is returned as the

The password file of the UNIX System (POSIX.1 is called the user database) contains the fields shown in Table 6-1, which are contained in the passwd structure defined in . Note: POSIX.1 only specifies five of the 10 fields in the passwd structure.

The basic time service provided by the UNIX kernel is the number of seconds that have elapsed since 00:00:00, January 1, January 1, 1970 AD, The International Standard Time. This number of seconds is represented by the Data Type time_t. They are

################ Operation################ Iostat-x 1 10Linux 2.6.18-92. el5xen 02/03/2009Avg-cpu: % user % nice % system % iowait % steal % idle1.10 0.00 4.82 39.54 0.07 54.46Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await svctm

Once a stream is enabled, you can select among three different types of unformatted I/O to read and write the stream: (1) I/O of each character. One read or write character at a time. If the stream is buffered, standard I/O processes all the

1. When the system enters the single-user status, directly use passwd root to change 2. Install the CD boot system and run the linux rescue status to connect the original/partition as follows: #> Cd/mnt #> Mkdir hd #> Mount-t auto/dev/hdaX

Vim Editor: Vi is installed by default for all Linux/UNIX systems, and vim is installed by default for mainstream Linux systems. Vim/Vi is a powerful full-screen text editor, the most common text editor on Linux/UNIX, It is used to create, edit, and

Let's take a look at the detailed tutorial on how to use the git repository in phpdesigner8.x. I hope the article will help you. My friends who use osc @ git often won the prize and feel very high, so I have been suffering from the absence of PHP