getkey(1)getkey(1)NAMEgetkey - 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 255. If
getkey is interrupted or the wait times out, getkey exits with other
non-zero status.
OPTIONS-c, --wait SECONDS
Wait only for SECONDS seconds. The default is 0, which means to
wait without a time limit.
-i, --ignore-control-chars
Don't treat Ctrl+C and Ctrl+D specially. When this option is
not specified, these characters interrupt getkey.
-m, --message MESSAGE
Display MESSAGE while waiting. The message is used as a format
string in sprintf(3), with a single argument, the number of sec‐
onds left. Typical usage is therefore "Press a key within %d
seconds to ...". If MESSAGE contains other format string direc‐
tives, the behavior is undefined and getkey may crash.
If there is no time limit specified, the number of seconds left
is reported as 0.
Jan 2006 getkey(1)