sed - Command Line
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description sed Overview

sed (Stream Editor) is the classic tool for non-interactive text transformation. It reads text line by line, applies specified edits (like search-and-replace), and prints the result to standard output. It is foundational knowledge for shell scripting, allowing users to sanitize input, reformat logs, or perform bulk text replacements reliably across massive datasets.

help sed FAQ

What is sed?
sed (Stream Editor) is the classic tool for non-interactive text transformation. It reads text line by line, applies specified edits (like search-and-replace), and prints the result to standard output. It is foundational knowledge for shell scripting, allowing users to sanitize input, reformat logs, or perform bulk text replacements reliably across massive datasets.
How good is sed?
sed scores 8.1/10 (Very Good) on Lunoo, making it a well-rated option in the Command Line category.
What are the best alternatives to sed?
See our alternatives page for sed for a ranked list with scores. Top alternatives include: awk, grep, find.
How does sed compare to awk?
See our detailed comparison of sed vs awk with scores, features, and an AI-powered verdict.
Is sed worth it in 2026?
With a score of 8.1/10, sed is highly rated in Command Line. See all Command Line ranked.

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