bash 散列文本文件中的每一行
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hash each line in text file
提问by aaaa
I'm trying to write a little script which will open a text file and give me an md5 hash for each line of text. For example I have a file with:
我正在尝试编写一个小脚本，它将打开一个文本文件并为每行文本提供一个 md5 哈希值。例如我有一个文件：
123
213
312
I want output to be:
我希望输出是：
ba1f2511fc30423bdbb183fe33f3dd0f
6f36dfd82a1b64f668d9957ad81199ff
390d29f732f024a4ebd58645781dfa5a
I'm trying to do this part in bash which will read each line:
我正在尝试在 bash 中执行此部分，它将读取每一行：
#!/bin/bash
#read.file.line.by.line.sh
while read line
do
echo $line
done
later on I do:
后来我做：
$ more 123.txt | ./read.line.by.line.sh | md5sum | cut -d ' ' -f 1
but I'm missing something here, does not work :(
但我在这里遗漏了一些东西，不起作用:(
Maybe there is an easier way...
也许有更简单的方法......
回答by Lars Wiegman
Almost there, try this:
差不多了，试试这个：
while read -r line; do printf %s "$line" | md5sum | cut -f1 -d' '; done < 123.txt
Unless you also want to hash the newline character in every line you should use printfor echo -ninstead of echooption.
除非您还想在每一行中散列换行符，否则您应该使用printf或echo -n代替echo选项。
In a script:
在脚本中：
#! /bin/bash
cat "$@" | while read -r line; do
printf %s "$line" | md5sum | cut -f1 -d' '
done
The script can be called with multiple files as parameters.
可以使用多个文件作为参数调用该脚本。
回答by Wes Hardaker
You can just call md5sum directly in the script:
您可以直接在脚本中调用 md5sum ：
#!/bin/bash
#read.file.line.by.line.sh
while read line
do
echo $line | md5sum | awk '{print }'
done
That way the script spits out directly what you want: the md5 hash of each line.
这样脚本会直接输出您想要的内容：每行的 md5 哈希值。
