Join Kevin Skoglund for an in-depth discussion in this video The terminal application, part of Unix for Mac OS X Users.
As I explained in the last movie, the way that we'll interact with Unix is going…to be from the command line and the way that we'll do that on a Mac is going to…be using the Terminal application.…It's going to provide a command line access to Unix and it comes preinstalled…with Mac OS X. So if you have Mac OS X, you have this application.…It's going to be located inside your Applications folder, inside the folder…called Utilities, and there you'll see the program Terminal.…A very useful shortcut is that if you're in the Finder you can type…Shift+Command+U and it will open the Utilities folder directly and there you'll see it.…
Just try that together and we can launch Terminal and see how it works.…So here I am. You can see that I am inside my Finder. I'll hold down…Shift+Command+U and it will open up my Utilities folder and right down here…you'll see that I have Terminal.…Now I could just double-click it to launch it, but because we're going to be…using it a lot throughout this training title I am going to drag it into the…
- 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
The instructor uses the UNIX program 'units' to convert 72° Fahrenheit to degrees Celsius. The returned value of 40 is incorrect. The correct result should be 22°C. What's the reason for this discrepancy?
The problem is that units does the 5/9 calculation but does not have the ability to subtract 32. So you'll need to subtract (or add) the 32 degrees yourself.
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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