Read from TTY

Reading a continuous stream:

kkr@host137:~$ cat < /dev/ttyUSB0 

Writing: 66% (5407 blocks)       
Writing: 67% (5489 blocks)       
^C
kkr@host137:~$

Reading one line:

kkr@host137:~$ read DEVICE_ID < /dev/ttyUSB7 && echo $DEVICE_ID > /tmp/DEVICE_ID &
kkr@host137:~$ echo ID? > /dev/ttyUSB7 && sleep 0.2 && cat /tmp/DEVICE_ID
HAMEG Instruments,HM8143,2.41
kkr@host137:~$