/** Shared helpers for drive-resident /bin scripts (prepended before each command). */
function bareStdin(ctx) {
  return typeof ctx.shellStdin === 'string' ? ctx.shellStdin : ''
}

async function run(ctx, argv) {
  const parts = argv.slice(1).filter((a) => a !== '--')
  if (!parts.length) {
    ctx.console.error('dirname: missing operand')
    return
  }
  for (const path of parts) {
    const cleaned = path.replace(/\/+$/, '') || '/'
    const i = cleaned.lastIndexOf('/')
    const out =
      i <= 0 ? (cleaned[0] === '/' ? '/' : '.') : cleaned.slice(0, i) || '/'
    ctx.console.log(out)
  }
}