
nix3-repl:tldr:fc164
The command :s ${expression} is commonly used in text editors or command line tools, particularly in the context of using regular expressions for search and replace operations.
Here is an explanation of the components of the command:
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:s stands for substitute. It is a command used to search for a specific pattern and replace it with another pattern.
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${expression} represents the search pattern or regular expression to be matched in the text. This can be a simple string or a more complex pattern defined using regular expression syntax. It can contain characters, symbols, or metacharacters with special meanings to define the search criteria.
Overall, this command instructs the text editor or command line tool to search for the specified pattern in the text and perform a substitution operation based on the given expression. The replacement pattern, if necessary, is typically provided after the expression.