# shellcheck disable=SC2064 trap "cleanup '$SCR_IMG'" EXIT While shellcheck can have false positives, and SCR_IMG probably doesn't have any characters whic

# shellcheck disable=SC2064 trap "cleanup '$SCR_IMG'" EXIT While shellcheck can have false positives, and SCR_IMG probably doesn't have any characters which need escaping, it's not exactly wrong in this case. The command passed to `trap` is evaluated normally, so variable expansions do take place. trap 'cleanup "$SCR_IMG"' EXIT Will behave correctly, and the expansion of SCR_IMG won't be susceptible to issues relating to unquoted shell characters. Alternatively, if you're using a modern bash (this probably won't work on a mac by default), then this is an option too: trap "cleanup ${SCR_IMG@Q}" EXIT