Bash 脚本 IF 和 ||造成语法错误

Question

我有一个 bash 脚本，如果 IF 语句中的命令之一以非零结尾（因此当它因错误退出时），我希望写入文件。但是，对于以下内容，我得到一个语法错误，最后出现意外的 "else" 。我用这个错误写对了吗？

if [[ $f != */.* ]]; then
        echo "$f"
        command-one || { echo 'Something went wrong with Command-one at file ' $f ' !' >> ../corrupted.txt } || error=1
        command-two || { echo 'Something went wrong with Command-two at file ' $f ' !' >> ../corrupted.txt } || error=1
        command-three || { echo 'Something went wrong with Command-three at file ' $f ' !' >> ../corrupted.txt } || error=1
        if [ error == 0 ]
        then
            echo "====================================================" >> ../ok.txt
            echo "All went well with: " $f >> ../ok.txt
        fi
        error=0
    else
        echo "This file is corrupted: " $f >> ../corrupted.txt
    fi

Answer 1

您错过了 if [ error == 0 ]

末尾的 ;

Answer 2

运算符==和!=仅用于字符串比较

来自

if [ error == 0 ]

至

if [ $error -eq 0 ]

要比较整数，您必须使用这些运算符（来自手册页）：

   INTEGER1 -eq INTEGER2
          INTEGER1 is equal to INTEGER2

   INTEGER1 -ge INTEGER2
          INTEGER1 is greater than or equal to INTEGER2

   INTEGER1 -gt INTEGER2
          INTEGER1 is greater than INTEGER2

   INTEGER1 -le INTEGER2
          INTEGER1 is less than or equal to INTEGER2

   INTEGER1 -lt INTEGER2
          INTEGER1 is less than INTEGER2

   INTEGER1 -ne INTEGER2
          INTEGER1 is not equal to INTEGER2

和

command-one || { echo 'Something went wrong with Command-one at file ' $f ' !' >> ../corrupted.txt && error=1; }
command-two || { echo 'Something went wrong with Command-two at file ' $f ' !' >> ../corrupted.txt && error=1; }
command-three || { echo 'Something went wrong with Command-three at file ' $f ' !' >> ../corrupted.txt  && error=1; }

说明

command-one || { echo 'Something went wrong with Command-one at file '$f ' !' >> ../corrupted.txt && error=1; }

如果 command-one returns 退出代码不是 0 那么，将 echo 中提到的文本附加到文件 ../corrupted.txt 并将变量 error 设置为 1

Answer 3

你这里处理的问题是SC1083 - This {/} is literal. Check expression (missing ;/\n?) or quote it.

的经典例子

} 是文字，因为它不在表达式的开头。我们通过在它之前添加一个 ; 来修复它。

所以在 } 之前添加 ; 以指示 command-termination 和 double-quote 所有变量，

command-one || { echo "Something went wrong with Command-one at file  ${f}  !" >> ../corrupted.txt; } || error=1
command-two || { echo "Something went wrong with Command-two at file  ${f}  !" >> ../corrupted.txt; } || error=1
command-three || { echo "Something went wrong with Command-three at file ${f} !" >> ../corrupted.txt; } || error=1

另一种方法是将比较运算符固定为

if [ $error -eq 0 ];

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