奇怪的散列比赛都在bash脚本编程时​​间 [英] strange hashing match all the time in bash scripting

问题描述

 ＃！/斌/庆典
    猜=`awk的'{打印$ 1}password`
    尝试= $（回声$猜测| sha256sum）
    测试=f2ca1bb6c7e907d06dafe4687e579fce76b37e4e93b7605022da52e6ccc26fd2
    如果[$尝试==$测试]
    然后
        回声密码$猜
    其他
        回声密码找不到
    科幻
 

所以我想从密码文件中的第一行的值，并且使用sha256sum获得哈希值，比较，我已经给了，如果它们是相同的，这意味着我发现密码值散列值。然而，当我尝试运行它，它变得疯狂，如果我设置密码，第一个值是ABC，输出将是密码为abc，如果我的值设置为你好，输出会是个招呼。它没有意义。

解决方案

 如果[$尝试==$测试]
 

这code的语法错误，我不应该做之间的空间，​​$试试，$测试也是我需要给间距和==。

修正：

 如果[$尝试==$测试]
 

    #!/bin/bash
    guess=`awk '{print $1}' password`
    try=$(echo "$guess" | sha256sum)
    testing="f2ca1bb6c7e907d06dafe4687e579fce76b37e4e93b7605022da52e6ccc26fd2"
    if [" $try "==" $testing "]
    then
        echo "the password is $guess"
    else
        echo "password not found"
    fi

So i am trying to get first line value from password file, and using sha256sum to get the hashing value, and compare the hashing value with the value that i already given, if they are the same, it means i found the password. However, when i try to run it, it became crazy, if i set first value in password to be "abc", the output will be "the password is abc", if i set the value to be "hello", output will be hello. It doesn't make sense.

解决方案

  if [" $try "==" $testing "]

this code has syntax errors, i should not make space between " and $try,$testing also i need to give space between " and ==.

Corrected:

  if [ "$try" == "$testing" ]

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