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--- linux_wiki:create_hard_and_soft_links [2016/02/29 22:58]
billdozor
+++ linux_wiki:create_hard_and_soft_links [2019/05/25 23:50]
@@ Line 1: / Line 1: @@
-====== Create Hard And Soft Links ======
-**General Information**
-Creating "short cuts" to files/directories.
-----
-===== Types of Links =====
-Soft link
-  * Link to a specific file location (can cross file systems)
-  * Also known as symbolic link or symlink.
-  * Like a simple shortcut; deleting a symlink does not remove original file.
-  * Deleting original file breaks the symlink and data is gone.
-Hard link
-  * Link to specific inode (cannot cross filesystems)
-  * Data not gone until all hard links have been deleted
-----
-===== Symlinks =====
-Example listing of a symbolic link
-<code bash>
-ls -l /etc/systemd/system/
-lrwxrwxrwx. 1 root root   37 Oct 17  2014 default.target -> /lib/systemd/system/multi-user.target
-</code>
-Create symlink
-<code bash>
-ln -s /etc/motd motd-local
-</code>
-  * Creates a symlink to "/etc/motd" in the current directory, called "motd-local"
-===== Hard Links =====
-Create hardlink
-<code bash>
-touch file1
-ln file1 file2
-</code>
-List the files
-<code bash>
-ll
--rw-------. 1 root root       9227 Oct 17  2014 anaconda-ks.cfg
--rw-r--r--. 2 root root          0 Jun 20 15:11 file1
--rw-r--r--. 2 root root          0 Jun 20 15:11 file2
-</code>
-  * Notice the column with "2", meaning 2 links to the inode)
-List with inode (-i) information
-<code bash>
-ls -li
-  8419076 -rw-------. 1 root root       9227 Oct 17  2014 anaconda-ks.cfg
-  8442605 -rw-r--r--. 2 root root          0 Jun 20 15:11 file1
-  8442605 -rw-r--r--. 2 root root          0 Jun 20 15:11 file2
-</code>
-  * Notice the first column shows the same inode for file1 and file2.
-----