diff --git a/sources/tech/20200529 What is the Difference Between Soft link vs Hard link in Linux.md b/sources/tech/20200529 What is the Difference Between Soft link vs Hard link in Linux.md deleted file mode 100644 index 008ab8cc00..0000000000 --- a/sources/tech/20200529 What is the Difference Between Soft link vs Hard link in Linux.md +++ /dev/null @@ -1,67 +0,0 @@ -[#]: collector: (lujun9972) -[#]: translator: (HankChow) -[#]: reviewer: ( ) -[#]: publisher: ( ) -[#]: url: ( ) -[#]: subject: (What is the Difference Between Soft link vs Hard link in Linux?) -[#]: via: (https://www.2daygeek.com/difference-between-soft-link-vs-hard-link-linux/) -[#]: author: (Magesh Maruthamuthu https://www.2daygeek.com/author/magesh/) - -What is the Difference Between Soft link vs Hard link in Linux? -====== - -A link is a mechanism for creating a shortcut to the original file or directory. It contains information about another file or directory. - -Links allow more than one filename to reference the same file. - -### What’s Soft link - -A symbolic link, also known as a symlink or a soft link, is a special type of file that points to another file or directory on Linux. - -It’s like a shortcut in Windows. It contains the path of the original file and not the contents. - -In general Symbolic links are used to link libraries. Also, used to link log files and folders on mounted NFS (Network File System) shares. - -### What’s Hard link - -Hard link is a mirror copy of the original file. Deleting the original file does not impact anything, because the hard link file serves as a mirror copy of the original file. - -Why would you want to create a link file instead of copying them? - -This is especially useful when you want to keep a same files in multiple location with updated contents. - -When you copy a file to another location, it will copy the content and never get updated from the source file. - -The contents of the file will be different from time to time. - -### The difference between Soft link vs Hard link - -I’ve included possible difference between soft link and hard link in the table below. - -S.No | Soft Link | Hard Link ----|---|--- -1 | The soft link is similar to the file shortcut on Windows. | Hard link is a mirror copy of the original file. -2 | Soft link can be called Symbolic link or symlink. | Hard link has no other name -3 | Changes in both file are reflected in the other. | It's like a soft link. -4 | Soft links can be created on different file systems. | Hard link can only be made on the same file system. -5 | Can create a soft link to files and directories | Only files can be linked -6 | It has different inode number and file permissions compared to the original file. | It has the same inode number and file permissions. -7 | It contains the path of the original file and not the contents. | It contains the actual contents of the original file. -8 | When the original file is removed, the link will die because it points to a non-existent file. This is called the hanging link. | Nothing happens when the original file is removed. -9 | You can create a soft link with the following command (# ln -s [Source Filename] [Link Name]) | Hard link can be created using the following command (# ln [Source Filename] [Link Name]) -10 | The soft link file contains a special symbol "l" in the file permission field. | There is no special symbol for this. -11 | You can find the soft link file with the following command (# find / -type l) | You can find the hard link file with the following command (# find / -samefile [Source Filename]) -12 | A broken soft link can be found using the following command (# symlinks [Path/to/Directory]). | Not applicable --------------------------------------------------------------------------------- - -via: https://www.2daygeek.com/difference-between-soft-link-vs-hard-link-linux/ - -作者：[Magesh Maruthamuthu][a] -选题：[lujun9972][b] -译者：[译者ID](https://github.com/译者ID) -校对：[校对者ID](https://github.com/校对者ID) - -本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出 - -[a]: https://www.2daygeek.com/author/magesh/ -[b]: https://github.com/lujun9972 diff --git a/translated/tech/20200529 What is the Difference Between Soft link vs Hard link in Linux.md b/translated/tech/20200529 What is the Difference Between Soft link vs Hard link in Linux.md new file mode 100644 index 0000000000..335575b141 --- /dev/null +++ b/translated/tech/20200529 What is the Difference Between Soft link vs Hard link in Linux.md @@ -0,0 +1,70 @@ +[#]: collector: (lujun9972) +[#]: translator: (HankChow) +[#]: reviewer: ( ) +[#]: publisher: ( ) +[#]: url: ( ) +[#]: subject: (What is the Difference Between Soft link vs Hard link in Linux?) +[#]: via: (https://www.2daygeek.com/difference-between-soft-link-vs-hard-link-linux/) +[#]: author: (Magesh Maruthamuthu https://www.2daygeek.com/author/magesh/) + + +Linux 中软链接和硬链接的区别 +====== + +链接Link是一种快捷访问机制，它通过一个文件指向原始文件或目录的方式实现快捷访问，同时还记录了原始文件或目录的一些信息。 + +链接允许多个不同文件对同一个文件进行引用。 + +### 什么是软链接 + +符号链接Symbolic Link，又称软链接Soft Link，是一种特殊的文件，它指向 Linux 系统上的另一个文件或目录。 + +这和 Windows 系统中的快捷方式有点类似，链接文件中记录的只是原始文件的路径，并不记录原始文件的内容。 + +符号链接通常用于对库进行链接，也常用于链接网络文件系统Network File System（NFS）上共享的日志文件和目录。 + +### 什么是硬链接 + +硬链接是原始文件的一个镜像副本。创建硬链接后，如果把原始文件删除，链接文件也不会受到影响，因为此时原始文件和链接文件互为镜像副本。 + +为什么要创建链接文件而不直接复制文件呢？ + +当你需要将同一个文件保存在多个不同位置，而且还要保持持续更新的时候，硬链接的重要性就体现出来了。 + +如果你只是单纯把文件复制到另一个位置，那么另一个位置的文件只会保存着复制那一刻的文件内容，后续也不会跟随着原始文件持续更新。 + +而使用硬链接时，各个镜像副本的文件内容都会同时更新。 + +### 软链接和硬链接的区别 + +下表列出了软链接和硬链接之间的区别。 + +# | 软链接 | 硬链接 +---|---|--- +1 | 软链接类似于 Windows 系统中的快捷方式 | 硬链接是原始文件的一个镜像副本 +2 | 软链接又称符号链接 | 硬链接没有别名 +3 | 链接中任何一个文件发生改变，都会同步到连接中的其它文件 | 和软链接一样 +4 | 软链接可以跨文件系统进行创建 | 硬链接不可以跨文件系统进行创建 +5 | 软链接可以指向文件或目录 | 硬链接只能指向文件 +6 | 链接文件和原始文件之间的 inode 和文件权限不完全一致 | 链接文件和原始文件的 inode 和文件权限完全一致 +7 | 链接文件只记录原始文件的路径，不记录原始文件的内容 | 链接文件记录了原始文件的内容 +8 | 如果原始文件被移除，软链接就会因为指向不存在的文件而失效。这被称为“挂起链接the hanging link” | 即使原始文件被移除，链接文件也不受影响。 +9 | 通过 `ln -s <原始文件> <链接文件>` 命令创建软链接 | 通过 `ln <原始文件> <链接文件>` 命令创建硬链接 +10 | 软链接文件的文件权限中有一个特殊标记 "l" | 硬链接文件没有特殊标记 +11 | 通过 `find / -type l` 命令可以查找软链接文件 | 通过 `find / -samefile <原始文件>` 命令可以查找硬链接文件 +12 | 通过 `symlinks <目录>` 命令可以查找失效的软链接 | 硬链接不存在失效链接 + + +-------------------------------------------------------------------------------- + +via: https://www.2daygeek.com/difference-between-soft-link-vs-hard-link-linux/ + +作者：[Magesh Maruthamuthu][a] +选题：[lujun9972][b] +译者：[HankChow](https://github.com/HankChow) +校对：[校对者ID](https://github.com/校对者ID) + +本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出 + +[a]: https://www.2daygeek.com/author/magesh/ +[b]: https://github.com/lujun9972