Patterns are everywhere, and computers are great at finding them. Learn how to use regular expressions, a powerful programming concepts, to search through files for specific patterns.
- [Narrator] Regular expressions…are a way of describing text…and they're used very widely…by programmers and system administrators.…Regular expressions let you specify a pattern…to look for in text,…rather than searching for an…explicit string of specific characters.…So they're very helpful if you ever need to…help answer a question,…where you know what the answer looks like…but not what it specifically is.…Say you wanted to find all the email addresses…or phone numbers in a text file.…You can write a regular expression…that looks for anything formatted like one.…
Regular expressions are essentially…a whole programming language of their own,…so in this video, I'll just go over the basics,…but be sure to check out our regular expressions course…for a more detailed look.…Common operators that we'll see in regular expressions…are dot, star or asterisk,…and square and curly brackets.…Dot represents any character.…Star or asterisk matches one or more…of a given character.…Square brackets define a range of characters,…
- Exploring filesystems
- Installing Linux on a physical or virtual machine
- Working with files, directories, and links
- Finding files
- Handling input/output redirection
- Comparing text files and non-text files
- Compressing and decompressing files
- Configuring file permissions
- Managing the root account
- Accessing the command line remotely
- Transferring files
Skill Level Beginner
1. Install and Log Into Ubuntu
System documentation11m 21s
2. Working with Files in the Terminal
3. Security and Administration
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