Use the GitHub CLI to replace a label on all issues and PRs in a repo with another label

gh-replace-label.sh

#!bin/bash

issues=`gh issue list -s all -l $1 --json number --jq '.[].number'`

echo Relabeling `echo $issues | wc -w` issues

for issue in $issues; do
  gh issue edit --remove-label $1 $issue
  gh issue edit --add-label $2 $issue
done

prs=`gh pr list -s all -l $1 --json number --jq '.[].number'`

echo Relabeling `echo $prs | wc -w` PRs

for pr in $prs; do
  gh issue edit --remove-label $1 $pr
  gh issue edit --add-label $2 $pr
done