linux bash中的条件代码块

发布时间：2020-12-14 02:31:49 所属栏目：Linux 来源：网络整理

导读：几乎每个人都知道非常有用的和||操作符,例如： rm myf echo "File is removed successfully" || echo "File is not removed" 我有一个问题：如何在之后放置一个命令块或||操作符没有使用这个功能？例如,我想做： rm myf echo "File is removed successful

几乎每个人都知道非常有用的&&和||操作符,例如：

rm myf && echo "File is removed successfully" || echo "File is not removed"

我有一个问题：如何在&&之后放置一个命令块或||操作符没有使用这个功能？

例如,我想做：

rm myf && 
  echo "File is removed successfully" 
  echo "another command executed when rm was successful" || 
  echo "File is not removed" 
  echo "another command executed when rm was NOT successful"

该脚本的正确语法是什么？

解决方法

rm myf && {
  echo "File is removed successfully" 
  echo "another command executed when rm was successful"
} || {
  echo "File is not removed" 
  echo "another command executed when rm was NOT successful"
}

或更好

if  rm myf ; then
      echo "File is removed successfully" 
      echo "another command executed when rm was successful"
else
      echo "File is not removed" 
      echo "another command executed when rm was NOT successful"
fi

（编辑：李大同）

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