Join Kevin Skoglund for an in-depth discussion in this video Monitoring processes, part of Unix for Mac OS X Users.
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- Exercise Files
In the last movie we saw how we can use the ps command to be able to view a list…of the Unix processes that are running.…But the problem with it is that sometimes we don't just want a snapshot in a…moment in time. We actually want to be able to watch the processes.…We want to be able to monitor them as the CPU and memory usage goes up and down,…whereas processes start and stop.…So to do that we need something that's a little more interactive that will keep…refreshing and showing us the state of things as they change.…The tool for doing that is called top.…So if you simply type top and hit Return, you will get a list of the top processes.…
Now, top processes depends on what order you've sorted it in.…By default, it's sorted by the Process ID.…So the most recent processes are at the top.…You will see above that that we actually have a list of some summary…information, the CPU usage, the memory usage, that kind of thing that's going on, …and then we get that information for each one of these as well.…
- 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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