Extended Regular Expressions (ERE)
Explore the use of extended regular expressions in Bash shell scripting to enhance your data processing skills. Understand metacharacters such as ?, +, and | which allow flexible pattern matching. This lesson helps you apply regex concepts for efficient searching and manipulation of text data in command-line environments.
We'll cover the following...
We'll cover the following...
Metachar ?
Matches the preceding element zero or one time.
Example:
xy?z matches only "xy" or ...