What is a symbolic link file in Linux?

A symbolic link, also termed a soft link, is a special kind of file that points to another file, much like a shortcut in Windows or a Macintosh alias. Unlike a hard link, a symbolic link does not contain the data in the target file. It simply points to another entry somewhere in the file system.

A symbolic link is a file-system object that points to another file system object. The object being pointed to is called the target. Symbolic links are transparent to users; the links appear as normal files or directories, and can be acted upon by the user or application in exactly the same manner.

To create a symbolic link, use the -s ( —symbolic ) option. If both the FILE and LINK are given, ln will create a link from the file specified as the first argument ( FILE ) to the file specified as the second argument ( LINK ).

To create a symbolic link pass the -s option to the ln command followed by the target file and the name of link. In the following example a file is symlinked into the bin folder. In the following example a mounted external drive is symlinked into a home directory.

A soft link (also called symlink or symbolic link) is a file system entry that points to the file name and location. … Deleting the symbolic link does not remove the original file. If, however, the file to which the soft link points is removed, the soft link stops working, it is broken.

Symbolic links are used all the time to link libraries and make sure files are in consistent places without moving or copying the original. Links are often used to “store” multiple copies of the same file in different places but still reference to one file.

To view the symbolic links in a directory:

  1. Open a terminal and move to that directory.
  2. Type the command: ls -la. This shall long list all the files in the directory even if they are hidden.
  3. The files that start with l are your symbolic link files.

Simplest way: cd to where the symbolic link is located and do ls -l to list the details of the files. The part to the right of -> after the symbolic link is the destination to which it is pointing.

The ln command in Linux creates links between source files and directories.

  1. -s – the command for Symbolic Links.
  2. [target file] – name of the existing file for which you are creating the link.
  3. [Symbolic filename] – name of the symbolic link.

Replace source_file with the name of the existing file for which you want to create the symbolic link (this file can be any existing file or directory across the file systems). Replace myfile with the name of the symbolic link. The ln command then creates the symbolic link.

The reason hard-linking directories is not allowed is a little technical. Essentially, they break the file-system structure. You should generally not use hard links anyway. Symbolic links allow most of the same functionality without causing problems (e.g ln -s target link ).

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