Join Kevin Skoglund for an in-depth discussion in this video Appending to a file, part of Unix for Mac OS X Users.
In the last movie we saw how we can redirect outputs, so that instead of being…output to standard out which is our screen,…instead it's directed to a file.…In the process of doing that we saw that it actually overwrites the contents of the file.…So we completely destroy whatever was in the file by doing it that way.…What we're going to see now is how we can append to the end of the file.…So we are still directing the output to a file, but we're just doing it without…destroying what was already there.…Notice that I'm inside my user directory and inside Unix files, and if I do ls…-la you'll see the files that are there now. A lot of those are files that we just…created in the last movie.…
Let's begin by creating a list, nano people.txt. Let's just put a list of…people's names in here, Lynda, Bob, Susan, Larry, and Anne.…I'm going to hit Return. I want to show you something that nano does here. If I…hit the down arrow you'll see it actually gives me one extra line.…So there is an automatic sort of implied extra line there. I'm going to remove that, okay.…
- 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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