Linux Shell MAC address conversion convert with SED

Convert the 0024.b20b.693f address into a 00:24:b2:0b:69:3f

1. Dot-delimited

[Email protected] ~]# echo "0024.b20b.693f" | Sed-r ' s/\b (..) (..) \b/\1:\2/g;s/\./:/g '
00:24:b2:0b:69:3f

2. If the colon is separated, convert the 0024:b20b:693f to 00:24:b2:0b:69:3f last. Replaced by: can be removed;

[Email protected] ~]# echo "0024:b20b:693f" | Sed-r ' s/\b (..) (..) \b/\1:\2/g '
00:24:b2:0b:69:3f

Another matching method for 3.-r extended regular expressions

[Email protected] ~]# echo "0024.b20b.693f" | Sed-r ' s/\b ([0-9af]{2}) ([0-9a-f]{2}) \b/\1:\2/g;s/\./:/g '
00:24:b20b:69:3f
[Email protected] ~]#

Linux Shell MAC address conversion convert with SED