if 语句缺少 fi

if 语句缺少 fi

我编写了一个脚本,其中有一些嵌套的 if 语句。

if [ choice = "1" ]; then
        if [ $package == *".tar.gz" ]; then //Could not find fi for this if
        tar -zxvf folder.tar.gz
        if [ $package == *".tar.bz2" ]; then
        tar -xvfj folder.tar.bz2
./configure
make 
make install
elif [ choice = "2" ]; then
dpkg -i package.deb
fi 
//Expected fi

已写出我在脚本中遇到 fi 错误的位置。

答案1

这是您想要使用的典型情况case

case $choice in
  (1)
     case $package in
       (*.tar.gz) tar -zxvf folder.tar.gz;;
       (*.tar.bz2) tar -jxvf folder.tar.bz2;;
     esac &&
       ./configure &&
       make &&
       make install
     ;;
  (2)
     dpkg -i package.deb
     ;;
esac

答案2

条件的基本结构如下:

if [ condition ]; then
    dosomething
fi

与其他:

if [ condition ]; then
    dosomething
elif [ condition ]; then
    dootherthing
else
    thelastchancetodosomething
fi

另外,我认为你的代码中的这个条件是错误的:

if [ $package == *".tar.gz" ]; then
    tar -zxvf folder.tar.gz
fi

如果我理解正确的话,应该是这样的:

if echo $package | grep -qF ".tar.gz"; then
    tar -zxvf $package
fi

哦,并用于#注释而不是//.

修复您的示例并改进缩进以使其更加清晰:

if [ choice = "1" ]; then
    if echo $package | grep -qF ".tar.gz"; then
        tar -zxvf $package
    # You need to close previous `if` with a `fi` you want to use another
    # `if` here below, but we can use `elif`, so we don't need to close it.
    elif echo $package | grep -qF ".tar.bz2"; then
        tar -xvfj $package
    fi
    cd ${package%.*.*} # this removes the .tar.* extension
    ./configure
    make 
    make install
elif [ choice = "2" ]; then
    dpkg -i $package
fi

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