getkey (1) Linux Manual Page
getkey – wait until a key is pressed Synopsisgetkey [OPTION]… [KEYS] Descriptiongetkey waits until one of KEYS is pressed. If KEYS are not specified, any key is accepted. KEYS are matched case-insensitive. Exit Statusgetkey exits with status 0 if one of the expected keys is pressed. If invalid arguments are specified, getkey exits with status…
