4.1 Introduction 4.2 stat, fstat, fstatat, and lstat Functions The lstat function is similar to stat, but when the named file is a symbolic link, lstat returns information about the symbolic link, not the file referenced by the symbolic link. 4.3 文件类…

 1 File Times 每个文件会维护三个时间字段,每个字段代表的时间都不同.如下表所示: 字段说明: st_mtim(the modification time)记录了文件内容最后一次被修改的时间. st_ctim(the changed-status time)记录了文件的i-node最后一次被修改的时间,如修改文件权限位,修改文件所有者ID,修改关联到该文件的link数目. i-node中的信息和文件的实际内容是分离的,所以当更新i-node时,需要更新的时st_ctim(the ch…

Files and Directories Introduction     In the previous chapter we coveredthe basic functions that perform I/O. The discussion centered on I/O for regular files-opening a file, and reading or writing a file. We'll now look at additionalfeatures of the…

1.文件信息结构体 struct stat{ mode_t st_mode; //file type and permissions ino_t st_ino; //i-node number (serial number) dev_t st_dev; //device number (file system) dev_t st_rdev; //device number for special files nlink_t st_nlink; //number of links uid_t st…

本篇主要介绍文件和文件系统中常用的一些函数,文件系统的组织结构和硬链接.符号链接. 通过对这些知识的了解,可以对Linux文件系统有更为全面的了解.   1 umask函数 之前我们已经了解了每个文件与权限相关的9个位(bit),我们现在来了解一下当每个进程创建文件时默认会设置该文件的文件权限(the file mode creation mask). umask函数设置该进程默认创建文件的权限掩码(the file mode creation mask),并且返回之前的权限掩码值. #incl…

4.1 Introduction unix的文件.目录都被当成文件来看待(vi也可以编辑目录):我猜这样把一起内容都当成文件的原因是便于统一管理权限这类的内容 4.2 stat, fstat, fstatat and lstat Functions & 4.3 File Types 1. 介绍一个系统提供的结构体 struct stat,里面包含了与文件相关的各种信息. 书上还介绍,unix系统命令ls -l就是用了上面的数据结构. 2. File Types 书上一共介绍如下几种文件类型: (…

The Linux “du” (Disk Usage) is a standard Unix/Linux command, used to check the information of disk usage of files and directories on a machine. The du command has many parameter options that can be used to get the results in many formats. The du com…

cp - Copy Files and directories mv - move/rename files and directories mkdir - create directories rm - remove files and directories ln - create hard and symbolic links…

Step 1 Copy the files and directories to other place. Step 2 Delete the files and directories. Step 3 Commit. Step 4 Paste the files and directories from backup place. Step 5 Commit.…

August 27, 2013Software Developmentresources, subversion, svn, tutorial, version control Who knew it would be so hard to get svn to ignore some files and directories? I’m working on an Android project, and I wanted svn to stop looking at me questioni…