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Regex for PCRE, grep, ripgrep, and sed/awk regex condition

Print lines matching a regex in awk.

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Section: grep, egrep, and ripgrep

awk regex condition

bash
bash
awk '/^[0-9]{4}-[0-9]{2}-[0-9]{2}/ { print }' file.txt
Explanation

awk uses regex in pattern positions for line filtering.

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