Re: Useless Use Of Regexes

On 2025-03-24, Lawrence D'Oliveiro <ldo@nz.invalid> wrote:

namely this one:
>
    ip addr | grep -Eo '192\.168\.1\.[0-9]{1,3}'
>
which can be more easily written using features built into iproute2 itself:
>
    ip addr show to 192.168.1.0/24

Even if you were going to use regex for that, since the mask is /24,
why not shorten it?

OLD: ip addr | grep -Eo '192\.168\.1\.[0-9]{1,3}'
NEW: ip addr | grep -Eo '192\.168\.1\.'