windows dev null

Linux is a file-based system, and all hardware, such as software, will have a corresponding file representation under the directory. For Dev This directory, we know the file below it, which represents the Linux device. In Windows systems, devices

The shell can often be seen: >/dev/null 2>&1The result of the command can be defined in the form of a%> output/dev/null represents an empty device fileWhere does the > delegate redirect to, for example: echo "123" >/home/123.txt1 means stdout

Transfer from http://blog.chinaunix.net/uid-25100840-id-3271224.html a few days ago interview has such a question, more strange: Explain the meaning of >/dev/null 2>&1: I was scratching, also did not think out, wrote a clear buffer, hehe online

Linux is a file system, and all hardware, such as software, will be represented under the appropriate directory. For the dev directory, we know that the file below it represents the Linux device. In Windows, devices are well understood, like hard

/Dev/random and/dev/urandom notes, devurandom1. Basic Introduction /Dev/random and/dev/urandom are random Pseudo devices provided in Linux. The tasks of these two devices are to provide random byte data streams that are never empty. Many decryption

Standard output input device stdinDetailed analysis of Linux shell data redirection (input redirection and output redirection). They correspond to several special file descriptors, FD0,FD1,FD2 (Stdin,stdout,stderr)Such as:[Email protected] shell]$

Dev is the initials of the device (device). /dev This directory is very important to all users. Because the directory contains all the external devices used in the Linux system. But here is not the driver for the external device, which is not the

This article consists of two parts: 1. Process 2 of generating libmysql. A for DEV-C ++. Devc ++ in Windows C Language Access MySQL database environment configuration 1. The process of generating libmysql. A for DEV-C ++ aims: Because DEV-C ++ uses

Dev is the abbreviation of device. The/dev directory is very important to all users. This directory contains all external devices used in Linux. However, this is not the driver of the external device, which is different from the windows and DOS

Under Linux, the/dev directory is important and the various devices are below. Dev is the abbreviation for device, which means devices. /dev This directory is important for all users, because this directory contains all the external devices used in