tar command examples
View an existing tar archive.
More tar examples: The Ultimate Tar Command Tutorial with 10 Practical Examples
grep command examples
Search for a given string in a file (case in-sensitive search).
Print the matched line, along with the 3 lines after it.
Search for a given string in all files recursively
More grep examples: Get a Grip on the Grep! – 15 Practical Grep Command Examples