我有两个不同的USB设备,基于相同的USB- on 232芯片.当我在USB中插入它们时,它们被挂载到/dev/ttyUSB0 0.3[36051.393350] usb 4-2: FTDI USB Serial Device converter now attached to ttyUSB1[36061.823513] usb 4-1: FTDI USB Serial Device converter no
我想使用awk读取命令输出中的特定数据,这里是stty -F /dev/ttyUSB0 ispeed4800 && cat < /dev/ttyUSB0 $GPGGA,152826.996,2452.8328,N,06701.2544,E,1,03,3.2,32.7,M,$5}'
给你,-F defines a field separator, i.e.