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CompTIA Linux+ XK0-005 Practice Question

Which command utility can be used to search for and replace patterns within a file, and it requires no additional scripting or programming?

grep
awk
sed
tail

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Answer Description

The sed utility, short for stream editor, is designed to filter and transform text. It is used on the command line and within scripts for pattern matching and substitution, making it an ideal tool for search and replace operations within files without the need for writing complex scripts or programs. The other choices do not match the specific utility that directly performs search and replace operations on a file.

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What is the `sed` command and how is it used?

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What are the differences between `sed`, `awk`, and `grep`?

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Can you explain what a pattern is in the context of `sed`?

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CompTIA Linux+ XK0-005

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