posix error codes

System V and POSIX When we conduct inter-process communication in Linux, such as semaphores, message queues, and shared memory, we will find two types: System V and POSIX. Let's briefly introduce them today. POSIX: POSIX (Portable Operating System

In everyday English, the shell can be translated into shells, most of which means a device or structure that can protect the inner core. In computer science, the shell actually refers to a provider that can use the entire computer's resources

Directory Directory preface software Environment Knowledge Subprocess Popen Constructor constructor Class Popen parameter args calling program call shell instruction Stdinstdoutstderr real-time fetch subroutine output one time get all output of

My readers know that I am a person who likes Python3unicode. This is no exception. I will tell you how painful it is to use unicode and why I cannot shut up. I spent two weeks studying Python3 and need to vent my disappointment. There is still

A Brief Analysis of Linux internationalization and localization mechanism original address: http://www.oschina.net/question/12_7648 Linux is an international operating system. Its toolkit and device drivers support multi-language operations. This

Turn: http://hi.baidu.com/%BC%F2%B5%A5%BE%CD%BA%C3_88/blog/item/7cf34736f8e08e3d0a55a950.html   Multi-threaded programs are developed in C in Linux. multithreading in Linux follows the POSIX thread interface, which is called pthread.  

Regular expressions and PCRE functions in PHP. In PHP, the regular expression and PCRE function PCREPHP use different regular expressions: PCRE (Perl-compatible notation, preg _ *) function and POSIX (POSIX extension notation, regular expressions

Tar (1) User Commands tar (1)NAMETar-manual page for tar 1.26SynopsisTar [OPTION ...] [FILE] ...DESCRIPTIONGNU ' tar ' saves many files together into a single tape or disk archive, and canRestore individual files from the archive.Note that this

Source Address: http://blog.csdn.net/x_iya/article/details/72889456Tar-C: Create compressed archives-X: Unzip-T: View content-r: Append files to the end of a compressed archive file-U: Update files in original compressed packageThese five are

  I. Preface Anyone who has learned about ARM embedded knows that in order to make the PC program run on the ARM board, a cross-compilation environment must be established to compile the source code. I will not talk about the basic concepts of the