[kaos keos]# timedatectl-restorer -h
usage: timedatectl-restorer [-h] [-r] [-a s] timefile runfile
Restore system time across reboots when the internal clock is dead.
positional arguments:
timefile The file in which to save the clock time.
runfile The run file to use to prevent multiple restorations in a
single session.
optional arguments:
-h, --help show this help message and exit
-r, --restore Restore time from file. If not set, the current time will be
saved instead. If the run file exists or the time file does
not exist then no restoration will be performed.
-a s, --add s The number of seconds to add to the saved time. Default: 10
s.
[kaos keos]# timedatectl-restorer -r
usage: timedatectl-restorer [-h] [-r] [-a s] timefile runfile
timedatectl-restorer: error: the following arguments are required: timefile, runfile
[kaos keos]# timedatectl-restorer -a
usage: timedatectl-restorer [-h] [-r] [-a s] timefile runfile
timedatectl-restorer: error: argument -a/--add: expected one argument
[kaos keos]# timedatectl-restorer -s
usage: timedatectl-restorer [-h] [-r] [-a s] timefile runfile
timedatectl-restorer: error: the following arguments are required: timefile, runfile
[kaos keos]#
[kaos keos]# hwclock
2017-12-27 06:12:17.139733-0500
[kaos keos]# date
mié dic 27 11:12:28 EST 2017
[kaos keos]#