linux下检测可用串口并使用minicom打开

/etc/minicom/minirc.ttyUSBx

# Machine-generated file - use "minicom -s" to change parameters.
pu port             /dev/ttyUSB0
pu rtscts           No

#!/bin/bash
#set -x

ports=`ls /dev/ttyUSB*`
select port in $ports;do
    if [ $port ]; then
        echo "You select the choice '$port'"
        port=${port##*/}
        sed -i "s/\(pu port .*\/dev\/\).*/\1$port/" /etc/minicom/minirc.ttyUSBx
        exec minicom ttyUSBx $@
        break
    else
        echo "Invaild selection"
    fi
done

ln -s  /path/to/myminicom.sh  /usr/bin/com