Ubuntu子系统shell脚本自动连接xfce4界面

脚本功能

• 命令行参数指定ip连接/获取ifconfig中的本地ip连接
• 修改.bashrc

#!/bin/bash

net_dev="wifi0" #默认的设备名
FALSE="0"
TRUE="1"

# 若无参数则选择本地ipv4 通过正则匹配ifconfig $net_dev的内容
l_ip=$(ifconfig $net_dev | grep "inet" | grep -v "inet6" |
        sed 's/^.*inet//g' | sed 's/netmask.*$//g' | sed 's/ //g')
ok_ip=$l_ip
is_ok=$FALSE

m_ip=$1 #命令行指定参数获取
if [ "$m_ip" = "" ];then
        is_ip=$(echo $l_ip | grep -P "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}")
        if [ "$is_ip" = "" ];then
                echo "ip is wrong or not found"
        else
                echo "use local ip"
                is_ok=$TRUE
        fi
else
        is_ip=$(echo $m_ip | grep -P "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}")
        if [ "$is_ip" = "" ];then
                echo "inputed ip is wrong ,you can retry or using default ip"
        else
                echo "use inputed ip"
                is_ok=$TRUE
                ok_ip=$is_ip
        fi
fi

if [ "$is_ok" = "1" ];then
        echo "Waiting for xfce connected to $ok_ip open"
        sed -i "$ s/[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}/$ok_ip/" ./.bashrc
        source ./.bashrc
        startxfce4
fi

注意事项

• 脚本修改的是.bashrc最后一行中的ip

export DISPLAY=192.168.x.x:0

• 因为脚本中有source命令，所以在终端中执行命令时要加source

# 本地ipv4执行
source ./openxfce4.sh

# 指定ip执行
source ./openxfce4.sh ip_addr

• 执行脚本前先启动xfce4