She trimmed back my flowery language, drew lines through my exclamation marks and argued for the value of restraint in expression.

When approaching a regular expression, treat it as its own programming problem, even though only one or two lines of code may be involved; those lines effectively form a small program.

Sed USES regular expression syntax to search for and replace text selectively in the pattern space as well as to control which lines of text should be operated on by sets of editing commands.