如何将输出存储到日志而不是echo

Question

我正在处理脚本，我希望隐藏输出，除非出现问题。一切正常，但文件只包含前几行输出，所有内容仍然显示在窗口中。

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，我得到了

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...

我尝试过使用tee命令并得到了类似的结果

Answer 1

请在此行中添加此2＆gt;＆amp; 1

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

添加stderr也是日志文件。