fix: command for special char handling #607

Job	Run time
bookworm armv7 / build	1m 29s
bullseye armv7 / build	1m 35s
bookworm armv7 / test (pi, run_installation_classic.sh)	11m 30s
bookworm armv7 / test (pi, run_installation_rfid.sh)	11m 27s
bookworm armv7 / test (pi, run_installation_spotify.sh)	11m 28s
bookworm armv7 / test (pi, run_installation_staticip_dhcpcd.sh)	11m 28s
bookworm armv7 / test (pi, run_installation_autohotspot_dhcpcd.sh)	11m 27s
bookworm armv7 / test (pi, run_installation_autohotspot_NetworkManager.sh)	11m 30s
bookworm armv7 / test (hans, run_installation_classic.sh)	42s
bullseye armv7 / test (pi, run_installation_classic.sh)	4m 31s
bullseye armv7 / test (pi, run_installation_rfid.sh)	5m 21s
bullseye armv7 / test (pi, run_installation_spotify.sh)	8m 45s
bullseye armv7 / test (pi, run_installation_staticip_dhcpcd.sh)	9m 8s
bullseye armv7 / test (pi, run_installation_autohotspot_dhcpcd.sh)	6m 43s
bullseye armv7 / test (pi, run_installation_autohotspot_NetworkManager.sh)	5m 12s
bullseye armv7 / test (hans, run_installation_classic.sh)	44s
bullseye armv7 / cleanup	0s
bookworm armv7 / cleanup	6s
	1h 53m 6s

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