---
- hosts: synology
  gather_facts: false
  tasks:
    - name: Inspect shell env on Synology
      ansible.builtin.raw: |
        echo "WHOAMI=$(whoami 2>/dev/null || true)"
        echo "SHELL0=$0"
        echo "PATH=$PATH"
        echo "which_sh=$(command -v sh 2>/dev/null || true)"
        echo "ls_/bin/sh=$(ls -l /bin/sh 2>/dev/null || true)"
        echo "ls_/bin/busybox=$(ls -l /bin/busybox 2>/dev/null || true)"
        echo "which_busybox=$(command -v busybox 2>/dev/null || true)"
        echo "test_builtin=$(test 1 -eq 1 && echo OK || echo KO)"
        echo "bracket_cmd=$(command -v '[' 2>/dev/null || true)"
      register: shinfo
      changed_when: false

    - debug:
        var: shinfo.stdout_lines

    - debug:
        var: shinfo.stderr_lines