How to use regex for numbers in the string?

Question

For example I have files that have names like

How can I find all 'book%NUMBER%_volume' files in one search? How do I mask the number after 'book'?

The simplest wait to do so is to use wildcards, specifically book[0-9]_volume* matches — myaut
– myaut, Commented Sep 15, 2017 at 14:29
Man, this was really simple! Thank you. Can you make an answer so I could mark it as the right one? — Bobby
– Bobby, Commented Sep 15, 2017 at 14:35

glenn jackman · Accepted Answer · 2017-09-15 15:23:57Z

2

If there can be more than one digit, use an extended pattern:

shopt -s extglob nullglob
books=( book_+([0-9])_volume* )

answered Sep 15, 2017 at 15:23

glenn jackman

249k42 gold badges233 silver badges362 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

myaut · Accepted Answer · 2017-09-15 14:43:23Z

1

The simplest way to do so is to use wildcards, specifically book[0-9]_volume* matches your example.

answered Sep 15, 2017 at 14:43

myaut

11.6k2 gold badges34 silver badges66 bronze badges