Grep integer with certain number of digits (e.g. 3) – termtrick.com

Grep integer with certain number of digits (e.g. 3)

Trick copyright: Bash-Oneliner <https://github.com/onceupon/Bash-Oneliner>

grep '[0-9]\{3\}'
# or
grep -E '[0-9]{3}'
# or
grep -P '\d{3}'

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