Join Kevin Skoglund for an in-depth discussion in this video Deleting files and directories, part of Unix for Mac OS X Users.
Now that we have seen how to create, move, rename and copy files, we are ready to…see how to go about deleting files and directories.…Removing is very simple. Before I show you how, let me also just make the caveat,…this is not the same thing as in the Finder when you delete something and it…moves into your trash.…If your remember ls -la, our user folder, and you'll see that there's this special…folder called Trash and that is where things go.…That's what's actually down here. When we put files in the trash that's where they exist.…
When we empty the trash, it empties them out.…What happens when you delete a file in the Finder is it's actually moving it.…It's not to empty the trash.…That it actually deletes it.…So there is a sort of buffer time where you can recover a file.…Delete in Unix doesn't work that way.…When you remove something, it is gone.…It is gone right away.…It doesn't move int to the trash.…You can move things to your trash to if you want. No problem you can do that.…You can move a file into the trash and it would sit there and wait until you…
- 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
Q: The exercise files for the following movies appear to be broken:
Is there something wrong with them?
These exercises include one or more "dot files", whose file names start with a period. These files are normally hidden from view by the Finder. So that they would show up in the Finder, the period has been removed from the file names. Additionally, "_example" has been added at the end of the file name to make it clear that the file will not work as-is.
To make the dot files usable, either:
1) Open the file in a text editor to view its contents. Note that it may not be possible to double-click the file to open it because there is no file extension (such as .txt).
2) Resave the file under a new name (usually by choosing File > Save As), adding a "." to the beginning of the file name and removing "_example" from the end.
1) Copy and rename the file from the Unix command line using the techniques discussed in this course. Rename the file by adding a "." to the start and removing "_example" from the end. Include the "-i" option to prevent overwriting an existing file unexpectedly.
Example: cp -i ~/Desktop/Exercise\ Files/Chapter_07/07_02_files/bashrc_example ~/.bashrc
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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