如何在 Mac OS X 中的 bash 中创建 md5 哈希
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How to create md5 hash in bash in Mac OS X
提问by WildBill
How can you create an md5 hash for a string on a mac using bash? md5sumdoes not exist in my environment. I did a manfor md5 but I'm confused about what that really does.
如何在 Mac 上使用 为字符串创建 md5 哈希bash？ md5sum在我的环境中不存在。我man为 md5做了一个，但我对它的真正作用感到困惑。
md5 "string"
does not return a hash.
不返回哈希值。
回答by jaypal singh
This should work -
这应该有效 -
[jaypal:~/Temp] echo "this will be encrypted" | md5
72caf9daf910b5ef86796f74c20b7e0b
or if you prefer here stringnotation then -
或者，如果您更喜欢here string符号，则 -
[jaypal:~/Temp] md5 <<< 'this will be encrypted'
72caf9daf910b5ef86796f74c20b7e0b
UPDATE:
更新：
Per the manpage, you can play around with any of the following options
每个man页面，您可以使用以下任何选项
-s string
Print a checksum of the given string.
-p Echo stdin to stdout and append the checksum to stdout.
-q Quiet mode - only the checksum is printed out. Overrides the -r option.
[jaypal:~/Temp] md5 -s 'this will be encrypted'
MD5 ("this will be encrypted") = 502810f799de274ff7840a1549cd028a
[jaypal:~/Temp] md5 -qs 'this will be encrypted'
502810f799de274ff7840a1549cd028a
Note: MD5 always produces the same hash. The reason you find the output different from the example given above is due to a point that has been made in the comments. The first two examples use the trailing newlinecharacter to produce the hash. To avoid that, you can use:
注意：MD5 总是产生相同的哈希值。您发现输出与上面给出的示例不同的原因是评论中提出的一点。前两个示例使用尾随newline字符生成散列。为避免这种情况，您可以使用：
[jaypal:~/Temp] echo -n "this will be encrypted" | md5
502810f799de274ff7840a1549cd028a
回答by user3842869
To achieve what you asked:
要实现您的要求：
md5 -s string
outputs: MD5 ("string") = b45cffe084dd3d20d928bee85e7b0f21
输出：MD5（“字符串”）= b45cffe084dd3d20d928bee85e7b0f21
回答by richo
OSX uses md5but most unices use md5sum
OSX 使用md5但大多数 unice 使用md5sum
Here is a section of rvm's rvmrc validation code which finds the correct md5 binary and wraps it.
这是rvm的 rvmrc 验证代码的一部分，它找到了正确的 md5 二进制文件并将其包装起来。
__rvm_md5_for()
{
if builtin command -v md5 > /dev/null; then
echo "" | md5
elif builtin command -v md5sum > /dev/null ; then
echo "" | md5sum | awk '{print }'
else
rvm_error "Neither md5 nor md5sum were found in the PATH"
return 1
fi
return 0
}
( Code from https://github.com/wayneeseguin/rvm/blob/master/scripts/functions/rvmrc)
（来自https://github.com/wayneeseguin/rvm/blob/master/scripts/functions/rvmrc 的代码）
回答by Cameron E
From the command line:
从命令行：
md5 <<< "String to hash"
8a0a39505c5753ff64a0377ab0265509
回答by Kyr
All the other answers are valid. I would like to also propose opensslas well:
所有其他答案都是有效的。我还想提出以下建议openssl：
? echo 'this will be hashed' | openssl md5
55be2dc2df2c1cc7bad72a0ecb338841
which is equivalent to the following
这相当于以下
? echo 'this will be hashed' | openssl dgst -md5
#?or
? openssl md5 <<< 'this will be hashed'
# or
? echo 'this will be hashed' | md5
回答by Sand1512
The correct way of doing that would be echo -n string | md5instead of echo "string" | md5. (I am using zsh)
这样做的正确方法是echo -n string | md5而不是echo "string" | md5. （我正在使用 zsh）
Convert the md5 hash given by echo -n string | md5you will get back string.
转换echo -n string | md5您给出的 md5 哈希值将返回string。
md5 -s stringalso works which is already pointed out here.
md5 -s string也可以工作，这里已经指出。
λ [~] → echo "string" | md5
b80fa55b1234f1935cea559d9efbc39a
λ [~] → echo -n string | md5
b45cffe084dd3d20d928bee85e7b0f21
λ [~] → md5 -s string
MD5 ("string") = b45cffe084dd3d20d928bee85e7b0f21
回答by Aaron Spiteri
You may want to use some randomness here, otherwise the password will always be the same. This should work:
您可能希望在这里使用一些随机性，否则密码将始终相同。这应该有效：
dd if=/dev/random count=20|md5
