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HMAC-SHA1 in bash
...cho -n "$data" | openssl dgst "-$digest" -hmac "$key" "$@"
}
# hex output by default
hash_hmac "sha1" "value" "key"
# raw output by adding the "-binary" flag
hash_hmac "sha1" "value" "key" -binary | base64
# other algos also work
hash_hmac "md5" "value" "key"
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How do you manage your gists on GitHub? [closed]
... search your gist. I use #hashtag in description, so I
can search my gist by tags via user:myusername #tag.
For offline usage, I cloned all my gists. And use find and grep to search them. I also search them with gonzui (open source code search engine).
I've written a shell script: gister.sh. I...
Get nodes where child node contains an attribute
... find this helpful — it's an article entitled "XPath in Five Paragraphs" by Ronald Bourret.
But in all honesty, //book[title[@lang='it']] and the above should be equivalent, unless your XPath engine has "issues." So it could be something in the code or sample XML that you're not showing us -- for...
HTTP Basic Authentication - what's the expected web browser experience?
...er, using BASIC auth?".
In the browser you can do a http basic auth first by waiting the prompt to come, or by editing the URL if you follow this format: http://myusername:mypassword@somesite.com
NB: the curl command mentionned in the question is perfectly fine, if you have a command-line and curl...
Explicitly calling return in a function or not
A while back I got rebuked by Simon Urbanek from the R core team (I believe) for recommending a user to explicitly calling return at the end of a function (his comment was deleted though):
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Rails migration: t.references with alternative name?
...able I'm creating doesn't exist... So I suspect it's not really supported by the official API.
– Quv
Nov 7 '17 at 3:53
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Understanding MongoDB BSON Document size limit
...h as you might in a SQL database. I have used this to even store multi gigabyte video files.
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How to save a plot as image on the disk?
...f you have resized the on-screen window.
Note that if your plot is made by either lattice or ggplot2 you have to explicitly print the plot. See this answer that explains this in more detail and also links to the R FAQ: ggplot's qplot does not execute on sourcing
2. I'm currently looking at a ...
Java SimpleDateFormat(“yyyy-MM-dd'T'HH:mm:ss'Z'”) gives timezone as IST
...ine/laptop timezone, you should always set the default timezone of the JVM by setting user.timezone system property: java -Duser.timezone=GMT ...
– kisna
Mar 15 '18 at 19:35
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Is it abusive to use IDisposable and “using” as a means for getting “scoped behavior” for exception
... w/ a Monitor call or something. UPDATE: Just realized the next answer is by Eric Lippert who is also on the languages team. ;) Perhaps the C# team itself is not in full agreement about this? The context of my discussion w/ Gunnerson was the TimedLock class: bit.ly/lKugIO
– Ha...