bin/fedora-rm-old-kernels

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#!/usr/bin/env bash
# Source: https://docs.fedoraproject.org/en-US/quick-docs/upgrading-fedora-offline/
old_kernels=($(dnf repoquery --installonly --latest-limit=-1 -q))
if [ "${#old_kernels[@]}" -eq 0 ]; then
echo "No old kernels found"
exit 0
fi
if ! sudo dnf remove "${old_kernels[@]}"; then
echo "Failed to remove old kernels"
exit 1
fi
echo "Removed old kernels"
exit 0