Интерактивная система просмотра системных руководств (man-ов)
getkey (1)
>> getkey (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
NAME
getkey - wait until a key is pressed
SYNOPSIS
getkey [OPTION]... [KEYS]
DESCRIPTION
getkey
waits until one of
KEYS
is pressed.
If
KEYS
are not specified, any key is accepted.
KEYS
are matched case-insensitive.
EXIT STATUS
getkey
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, --waitSECONDS
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, --messageMESSAGE
Display
MESSAGE
while waiting.
The message is used as a format string in
sprintf(3),
with a single argument, the number of seconds left.
Typical usage is therefore
"Press a key within %d seconds to ...".
If
MESSAGE
contains other format string directives, the behavior is undefined and
getkey
may crash.
If there is no time limit specified,
the number of seconds left is reported as 0.
