Linux

Touch a file. screenrc to $ home, then copy the following configuration to. screenrc file. Try the affects by command 'screen ': > Screen ##~ /. Screenrc # Show time and list of windows within the last linehardstatus onhardstatus

Use of mutex locks and conditional variables in Linux multithreading------------------------ # Include # Include # Include # Include Pthread_mutex_t count_lock;Pthread_cond_t count_nonzero;Unsigned count;Void * decrement_count (void *

To implement a gateway for a single Nic, the NIC must have two IP addresses: one internal IP address and one external IP address, which means a virtual Nic. Set IP Address: Ip addr add 192.168.3.187/24 Dev eth0 Ip addr add 192.168.4.187/24 Dev

Howto: Use 'strace 'to trace system cballs for a runtime app: # @ Option-t shows the time consumed by each call. # @ option-t add time information before each line in the output. # @ option-P trace the process of a PID. # @ option-X: the

  Separation and integration of threads At any point in time, threads can be combined (joinable) or separated (detached ). A combined thread can be reclaimed and killed by other threads. Its memory resources (such as stacks) are not released before

In one of our earlier articles, we learned how command line arguments are accessed from within the Code. Here in this article, we will see how these command line arguments can be used by a Linux ProcessTo change its own name.Linux Process that

HOw do I start, restart and stop the cron service under Linux/Unix/BSD like operating systems? Cron (crond) daemon or serviceIs use to execute scheduled commands or scripts. cron wakes up everyMinute, examining all stored crontabs, checking each

Author: Cheng yaogen,Hua Qing vision embedded training center lecturer. We know that on 32-bit machines, the address space of processes in the Linux operating system is 4 GB, 0-3G is the user space, and 3g-4G is the kernel space. In fact, this 4G

The RENAME Command in Linux has two versions: C language version Perl The C language command is as follows: Rename New String File Name of the original string Example 1: There are two files under the directory test: a_01 and a_02. If you need

Related Data Structure: Struct cdev { Struct kobject kobj; Struct module * owner; Const struct file_operations * OPS; Struct list_head list; Dev_t dev; Unsigned int count; }; Struct kobj_map { Struct probe { Struct probe * next; Dev_t dev; Unsigned

In terms of device drivers, linux2.6 has significant changes compared with linux2.4, which mainly shows that many new features (such as memory pool), sysfs file system, and kernel module have been added to the kernel API. O changes. ko, Driver

Linux Device Model (2) and Linux Device Model (3) mainly introduce the usage of data structures such as kobject, kset, kobj_type, and attribute through some simple practices, however, these implementations do not involve the device models and sysfs

1: software package to be installed: Compiz fusion-icon; Compiz config settings Manager (compiz configuration settings manager package)Fusion-Icon Software Package ); Install the driver that matches the video card in the attached driver, and ensure

I don't know if you have encountered any problems with shoot in Linux, Generally, srand (time (0) is used for initialization randomization seeds )); However, in Linux, the time function can only return accurate time to seconds, which means that we

This article compares MFC with wxWidgets in all aspects, especially its class hierarchy and some key macros, and provides an entry guide for MFC programmers to port wxWidgets. The layout is completed. Dish You may still be maintaining the old

Cainiao compiles Linux Kernel Pig with double eyelid Cainiao, I recently studied how to compile the Linux kernel. I hope to share it with you... We will not discuss the source code here, but some kernel compilation steps and related knowledge...

The firewall technology learned by Linux has evolved over several generations and has evolved step by step. The first ipfwadm was Alan Cox's learning in Linux.At the early stage of kernel development, it was transplanted from FreeBSD's kernel code.

This article is reproducedHttp://www.opensolution.org.cn/archives/502.html I. Free This tool displays available and used memory in the system. LinuxGenerally, common data is loaded to the virtual memory buffers of the system based on certain

There are two types of libraries: Dynamic and Static. So is a suffix for static use. A is a suffix. Example: libhello. So libhello. 　 To use libraries of different versions in the same system, you can add the version number after the library file

From: http://www.ibm.com/developerworks/cn/linux/l-linux-networking-stack/index.html Level: elementary M. Tim Jones (mtj@mtjones.com), consultant engineer, emulex July 16, 2007 One of the biggest features of Linux is its network stack. It was