Use with caution! Its a plain wrapper around sed and the input is not sanitized.

What it does

Changes every line of a text file according to a given regular expression.

Syntax

Use the sed-syntax -> s/find-pattern/replace-pattern/

Example

• s/x/-/ Replace all x with -.
• s/_.*// Splits a string after _ and replaces the rest with nothing.
• s/[^_]*_*// Splits a string after _ and replaces the first part with nothing.
• s/\s.*// Splits a string after whitespaces and replaces the rest with nothing.
• s/\S*\s*// Splits a string after whitespaces and replaces the first part with nothing.