-h,--help
Print this message
-d,--device=<devpath>
Set the device to read (default '/dev/ttyS0')
-b,--baudrate=<val>
Set the baudrate (default 115200)
-w,--width=<val>
Set the data bit width (default 8)
-p,--parity=<val>
Set the parity (default N)
-s,--stopbits=<val>
Set the stopbits (default 1)
-x,--xonxoff
Enable software flow control (default off)
-r,--rtscts
Enable RTS/CTS flow control (default off)
-f,--force-reset
Force pyserial to reset device parameters
--endtime=<secs>
End the program after the specified seconds have elapsed.
--command=<cmd>
Send a command to the port before reading
-t,--time
Print time for each line received. The time is
when the first character of each line is
received by grabserial
--systime
Print system time for each line received. The time
is the absolute local time when the first character
of each line is received by grabserial
-m,--match=<pat>
Specify a regular expression pattern to match to
set a base time. Time values for lines after the
line matching the pattern will be relative to
this base time.
-i,--instantpat=<pat>
Specify a regular expression pattern to have its time
reported at end of run. Works mid-line.
-q,--quitpat=<pat>
Specify a regular expression pattern to end the
program. Works mid-line.
-l,--launchtime
Set base time from launch of program.
-o,--output=<name>
Output data to the named file.
-v,--verbose
Show verbose runtime messages
-V,--version
Show version number and exit