Bumping tested-up-to on twelve plugins with one script

Every WordPress release means editing the same header line in every plugin readme, and doing it by hand is how one of them ends up claiming compatibility with a version from two years ago.

#!/usr/bin/env bash
set -euo pipefail

version="${1:?usage: bump-tested 5.0}"

for readme in plugins/*/readme.txt; do
    sed -i -E "s/^(Tested up to: ).*/1${version}/" "$readme"
    echo "$(dirname "$readme")"
done

grep -H 'Tested up to' plugins/*/readme.txt

The final grep is the part that makes it trustworthy — a sed that matched nothing exits zero, so without reading the result the script can report success and change nothing. The parameter expansion with :? turns a missing argument into a clear error rather than replacing every version with an empty string. It is ten lines and it removes a recurring twenty-minute task that nobody enjoys and everybody occasionally gets wrong.