linux - 如何将输出存储到日志而不是回显

我正在处理一个脚本，我希望输出被隐藏，除非有问题。一切正常工作，除了文件只包含前几行输出，一切仍显示在窗口中。

elif [ $input = "3" ]; then
    echo "enter package name"
    read package
    apt-get build-dep $package
    apt-get install $package -y >> /var/log/installlog
    exitstatus=$(echo $?)
    if [ $exitstatus = "0" ]; then
        figlet Installation Successful
    else
        echo "Failure check /var/log/installlog"
        figlet check now?
        echo "y or n"
        read input2
            if [ $input2 = "y" ]; then
                cat /var/log/installlog
            fi;
    fi;

当我检查installlog文件时

Reading package lists...
Building dependency tree...
Reading state information...
Reading package lists...
Building dependency tree...
Reading state information...
Reading package lists...
Building dependency tree...
Reading state information...

我试过使用tee命令，得到了类似的结果

最佳答案

请在此行中添加此2>&1

      apt-get install $package -y >> /var/log/installlog 2>&1

还要添加stderr日志文件。