nickva commented on issue #3924:
URL: https://github.com/apache/couchdb/issues/3924#issuecomment-1030651938
Thanks for reaching out, @vkuznet
`echo` adds a newline at the end so the encoded stream is not what we expect
usually.
In general ,`echo` and `base64` command line combination are not best way to
encode data because of that reason
python could work here or any other language which has a base64 encoder:
```
In [1]: import base64
In [2]: s = "admin:admin"
In [3]: base64.b64encode(s.encode("utf-8")).decode("utf-8")
Out[3]: 'YWRtaW46YWRtaW4='
```
Notice that the encoded string is different than:
```
echo "admin:admin" | base64
YWRtaW46YWRtaW4K
```
One way to handle it in the shell is to pass `-n` to echo so it doesn't
include the newline in the stream:
```
echo -n "admin:admin" | base64
YWRtaW46YWRtaW4=
```
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