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YYYY-MM-DD format date in shell script

I tried using $(date) in my bash shell script, however, I want the date in YYYY-MM-DD format. How do I get this? 13 A...
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SELECT INTO a table variable in T-SQL

Got a complex SELECT query, from which I would like to insert all rows into a table variable, but T-SQL doesn't allow it. 8...
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Convert a list to a string in C#

How do I convert a list to a string in C#? 13 Answers 13 ...
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How do you find the disk size of a Postgres / PostgreSQL table and its indexes

I'm coming to Postgres from Oracle and looking for a way to find the table and index size in terms of bytes/MB/GB/etc , or even better the size for all tables. In Oracle I had a nasty long query that looked at user_lobs and user_segments to give back an answer. ...
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What is “rvalue reference for *this”?

Came across a proposal called "rvalue reference for *this" in clang's C++11 status page . 3 Answers ...
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I can’t find the Android keytool

I am trying to follow the Android mapping tutorial and got to this part where I had to get an API key . 10 Answers ...
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Check if a Bash array contains a value

In Bash, what is the simplest way to test if an array contains a certain value? 35 Answers ...
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How to construct a timedelta object from a simple string

I'm writing a function that needs a timedelta input to be passed in as a string. The user must enter something like "32m" or "2h32m", or even "4:13" or "5hr34m56s"... Is there a library or something that has this sort of thing already implemented? ...
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How to plot two histograms together in R?

I am using R and I have two data frames: carrots and cucumbers. Each data frame has a single numeric column which lists the length of all measured carrots (total: 100k carrots) and cucumbers (total: 50k cucumbers). ...
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Get environment variable value in Dockerfile

I'm building a container for a ruby app. My app's configuration is contained within environment variables (loaded inside the app with dotenv ). ...