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How do you attach and detach from Docker's process?
I can attach to a docker process but Ctrl + c doesn't work to detach from it. exit basically halts the process.
15 Ans...
Understanding ibeacon distancing
... Great answer and code David. Where does the txPower value come from? Is it a calibration value done on the client (receiving) side? Or is it a metric you can get from a beacon?
– rmooney
Jan 6 '14 at 19:06
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MongoDB: Combine data from multiple collections into one..how?
How can I (in MongoDB) combine data from multiple collections into one collection?
11 Answers
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What's the difference between tilde(~) and caret(^) in package.json?
...versions, without incrementing the minor version. ~1.2.3 will use releases from 1.2.3 to <1.3.0.
^version “Compatible with version”, will update you to all future minor/patch versions, without incrementing the major version. ^2.3.4 will use releases from 2.3.4 to <3.0.0.
See Comments be...
How to change column datatype from character to numeric in PostgreSQL 8.4
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The optional USING clause specifies how to compute the new column value from the old; if omitted, the default conversion is the same as an assignment cast from old data type to new. A USING clause must be provided if there is no implicit or assignment cast from old to new type.
So this might wo...
How do you remove duplicates from a list whilst preserving order?
Is there a built-in that removes duplicates from list in Python, whilst preserving order? I know that I can use a set to remove duplicates, but that destroys the original order. I also know that I can roll my own like this:
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psycopg2: insert multiple rows with one query
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Just confirmed this improvement myself. From what I've read psycopg2's executemany doesn't do anything optimal, just loops and does many execute statements. Using this method, a 700 row insert to a remote server went from 60s to <2s.
– Nels...
GIT repository layout for server with multiple projects
...r. Is there another option??
@Paul: yes, instead of updating the version from the main project, you either:
develop your subprojects directly from within the main project (as explained in "True Nature of submodules"),
or you reference in a sub-repo an origin towards the same sub-repo being deve...
Test if remote TCP port is open from a shell script
...ethod for properly testing if a given TCP port is open on a remote server, from inside a Shell script.
16 Answers
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Remove a fixed prefix/suffix from a string in Bash
... I have a string and its prefix/suffix. I need to remove the prefix/suffix from the original string.
9 Answers
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