how to create empty file in unix

Http://dev2dev.cnblogs.com/archive/2005/10/10/251894.aspxGetting Started with Unix OS and basicsUnlike the familiar Windows user interface and usage habits, UNIX is often used command run, very flexible operating system, the current products are

I. INTRODUCTION Unix system, as a powerful multi-user time-sharing operating system, has been applied in more and more occasions, and the requirements of UNIX system management are more and more, but the current Books on UNIX system management

Unix SystemIn, some programs use the systemRootProcess running. These programs do not always have suid permission, because many of them only run by the root, the system administrator needs to know what these programs are doing and what other

Lseek Function Off_t lseek (intFiledes, Off_tOffset, Int whence ); Whence: seek_set, which indicates that the offset of the file is set to the offset byte starting from the file. Seek_cur. Currently, the value is + offset bytes. The offset value can

This article mainly introduces some functions commonly used in file and file system, the organization structure of file system and the hard link, symbolic link.By understanding this knowledge, you can have a more comprehensive understanding of the

Lien0000342014-09-181 Introduction In Unix systems, a directory is a special file type. We can use the open function to open the directory, obtain the file descriptor, and then call the stat function to obtain the Directory attribute information,

Linux/UNIX: Use the dd command to create a 1 GB binary How can I use Shell commands to create 1 GB or 10 Gb image files on UNIX, Linux, and BSD systems using dd commands? You can use the dd command to generate an image file to test the network or

This article is used to record common file manipulation functions in Linux programming, including system calls and library functions, for review.One problem with direct use of the underlying system calls for input and output operations is that they

Getrlimit and Setrlimit functions Every process has a set of resource limits, some of which can is queried and changed by the Getrlimit and Setrlimit Ons. #include int getrlimit (int resource, struct rlimit *rlptr); int setrlimit (int resource,

This is a creation in Article, where the information may have evolved or changed. Type TCPADDR//indicates TCP terminal address Type tcpaddr struct { IP IP Port int //IPV6 addressing range } Func resolvetcpaddr (NET, addr string)