一个简单的安装包脚本

#! /bin/bash

set -e
set -u

echo "---begin install---"

dpkg -l | grep lingqiclient >/dev/null 2>&1
if [ $? -eq 0 ]; then
	echo ""

which "v4l2-ctl" >/dev/null 2>&1
if [ $? -eq 0 ]; then
    echo "find cmd v4l2-ctl"
else
    sudo dpkg -i v4l-utils_1.16.3-3_amd64.deb
fi