How to Use ln Command in Linux: Create Links Easily

The ln command in Linux creates links between files. Use ln source target for a hard link or ln -s source target for a symbolic (soft) link. Links let you access the same file from different paths without copying it.

Syntax

The basic syntax of the ln command is:

• ln [options] <source> <target>

Where:

• source: The original file or directory you want to link to.
• target: The name of the new link you want to create.
• options: Flags to modify behavior, like -s for symbolic links.

Without options, ln creates a hard link. With -s, it creates a symbolic link.

bash

ln [options] <source> <target>

Example

This example shows how to create a symbolic link named link_to_file.txt pointing to original_file.txt. The symbolic link acts like a shortcut to the original file.

bash

echo "Hello, world!" > original_file.txt
ln -s original_file.txt link_to_file.txt
cat link_to_file.txt

Output

Hello, world!

Common Pitfalls

Common mistakes when using ln include:

• Forgetting the -s option when you want a symbolic link, which creates a hard link instead.
• Creating links to directories without -s, which is not allowed for hard links.
• Using relative paths incorrectly, causing broken links.

Always check if you need a hard or symbolic link and verify paths carefully.

bash

ln original_file.txt link_hard
ln -s original_file.txt link_soft
ls -l link_hard link_soft

Output

lrwxrwxrwx 1 user user    17 Apr 27 12:00 link_soft -> original_file.txt
-rw-r--r-- 2 user user    14 Apr 27 12:00 link_hard

Quick Reference

Option	Description
-s	Create a symbolic (soft) link
-f	Force removal of existing destination files
-n	Do not dereference destination if it is a symlink
-v	Verbose output showing actions
--help	Show help message

Key Takeaways

Use ln -s source target to create symbolic links, which are like shortcuts.

Hard links share the same data but cannot link directories; symbolic links can link directories.

Always verify paths to avoid broken links, especially with symbolic links.

Use ls -l to check if a link is symbolic (shows ->) or hard (same inode).