Join Kevin Skoglund for an in-depth discussion in this video Hard links, part of Unix for Mac OS X Users.
In Unix we are going to want to make use of links.…And the first kind of links that we are going to look at in Unix are hard links.…The way that we make a hard link is just simply to have ln, short for link,…space and then the file that we want to link. That could either just be a file…name or could be a full path to a file, if the file is located somewhere else.…Followed by a space and then followed by the name of the hard link or if we…want to put that link somewhere else, the path where we want to locate it, as…if we were creating a file.…
But if we are in a single directory, than we would just put the file that we…want to link and then the hard link that we want to make to that file.…What this will do is make a reference to a file in the file system, the same…way that making a Finder alias would do.…And like the Finder, it will not break if the file is moved.…But there's one important difference about the way that hard links work.…Remember in the Finder, if we threw away the original file, the alias still is there, …
- Moving around the file system
- Creating and reading files
- Copying, moving, renaming, and deleting files and directories
- Creating hard links and symbolic links
- Understanding user identity, file ownership, and sudo
- Setting file permissions with alpha and octal notation
- Changing the PATH variable
- Using the command history
- Directing input and output
- Configuring the Unix working environment
- Searching and replacing using grep and regular expressions
- Manipulating text with tr, sed, and cut
- Integrating with the Finder, Spotlight, and AppleScript
Skill Level Beginner
1. Introduction to Unix
2. Filesystem Basics
3. Working with Files and Directories
4. Ownership and Permissions
5. Commands and Programs
6. Directing Input and Output
7. Configuring Your Working Environment
8. Unix Power Tools
9. Useful Mac-Only Commands and Techniques
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