On Mon 01 May 2023 at 02:24:18 (+0200), coreyh@free.fr wrote: > I wrote this script for reversing an IP: $ IP='12.34.56.78' $ sed -E 's/([[:digit:]]+)\.([[:digit:]]+)\.([[:digit:]]+)\.([[:digit:]]+)/\4.\3.\2.\1/' <<<"$IP" 78.56.34.12 $ or REVERSE="$(↑↑↑that stuff↑↑↑)" Cheers, David.