Tip to delete tags by pattern

gistfile1.txt

#delete all the remote tags with the pattern your looking for, ie. DEV-
git tag | grep <pattern> | xargs -n 1 -i% git push origin :refs/tags/%
#delete all your local tags
git tag | xargs -n 1 -i% git tag -d %
#fetch the remote tags which still remain
git fetch

https://www.digitalocean.com/community/tutorials/using-grep-regular-expressions-to-search-for-text-patterns-in-linux